Entity Framework SaveChanges throws error in docker container - entity-framework

We recently moved a .net project to .net core and have it running in a docker container. Since doing so I've been getting an occasional error from entity framework when saving changes on a new entity. In none of the cases does the entity have any related objects. It's just creating a new single record in the database.
The error message unfortunately doesn't make much sense to me and I'm not sure where to begin looking. Since it didn't do this before I'm wondering if it's somehow tied to being in a docker container or the move to .net core. The error message is...
System.Data.SqlClient.SqlException (0x80131904): A transport-level
error has occurred when receiving results from the server. (provider:
TCP Provider, error: 0 - Success) at
System.Data.SqlClient.SqlConnection.OnError(SqlException exception,
Boolean breakConnection, Action1 wrapCloseInAction) at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection, Action1 wrapCloseInAction) at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) at
System.Data.SqlClient.TdsParserStateObject.ReadSniError(TdsParserStateObject
stateObj, UInt32 error) at
System.Data.SqlClient.TdsParserStateObject.ReadSniSyncOverAsync() at
System.Data.SqlClient.TdsParserStateObject.TryReadNetworkPacket() at
System.Data.SqlClient.TdsParserStateObject.TryPrepareBuffer() at
System.Data.SqlClient.TdsParserStateObject.TryReadByte(Byte& value) at
System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior,
SqlCommand cmdHandler, SqlDataReader dataStream,
BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject
stateObj, Boolean& dataReady) at
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior,
SqlCommand cmdHandler, SqlDataReader dataStream,
BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject
stateObj) at
System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[]
buffer, TransactionManagerRequestType request, String transactionName,
TransactionManagerIsolationLevel isoLevel, Int32 timeout,
SqlInternalTransaction transaction, TdsParserStateObject stateObj) at
System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransactionYukon(TransactionRequest
transactionRequest, String transactionName, IsolationLevel iso,
SqlInternalTransaction internalTransaction) at
System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransaction(TransactionRequest
transactionRequest, String name, IsolationLevel iso,
SqlInternalTransaction internalTransaction) at
System.Data.SqlClient.SqlInternalConnection.BeginSqlTransaction(IsolationLevel
iso, String transactionName, Boolean shouldReconnect) at
System.Data.SqlClient.SqlConnection.BeginTransaction(IsolationLevel
iso, String transactionName) at
System.Data.SqlClient.SqlConnection.BeginDbTransaction(IsolationLevel
isolationLevel) at
System.Data.Common.DbConnection.BeginTransaction(IsolationLevel
isolationLevel) at
Microsoft.EntityFrameworkCore.Storage.RelationalConnection.BeginTransactionWithNoPreconditions(IsolationLevel
isolationLevel) at
Microsoft.EntityFrameworkCore.Storage.RelationalConnection.BeginTransaction(IsolationLevel
isolationLevel) at
Microsoft.EntityFrameworkCore.Storage.RelationalConnection.BeginTransaction()
at
Microsoft.EntityFrameworkCore.Update.Internal.BatchExecutor.Execute(Tuple2
parameters) at
Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](TState
state, Func3 operation, Func3 verifySucceeded) at
Microsoft.EntityFrameworkCore.Update.Internal.BatchExecutor.Execute(IEnumerable1
commandBatches, IRelationalConnection connection) at
Microsoft.EntityFrameworkCore.Storage.RelationalDatabase.SaveChanges(IReadOnlyList1
entries) at
Microsoft.EntityFrameworkCore.ChangeTracking.Internal.StateManager.SaveChanges(IReadOnlyList1
entriesToSave) at
Microsoft.EntityFrameworkCore.ChangeTracking.Internal.StateManager.SaveChanges(Boolean
acceptAllChangesOnSuccess) at
Microsoft.EntityFrameworkCore.DbContext.SaveChanges(Boolean
acceptAllChangesOnSuccess) at
Microsoft.EntityFrameworkCore.DbContext.SaveChanges() at
TEAPI.Domain.Data.Repositories.EventLogRepository.LogEvent(EventLogEvent
eventLogEvent) in
/home/web/buildAgent/work/35649df7ceb7c251/src/TEAPI.Domain/Data/Repositories/EventLogRepository.cs:line
52 at TEAPI.Controllers.EventLogController.LogSalesEvent() in
/home/web/buildAgent/work/35649df7ceb7c251/src/TEAPI/Controllers/EventLogController.cs:line
27 at
Microsoft.Extensions.Internal.ObjectMethodExecutor.<>c__DisplayClass33_0.b__0(Object
target, Object[] parameters) at
Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object
target, Object[] parameters) at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d__12.MoveNext()
--- End of stack trace from previous location where exception was thrown --- at
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
task) at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown --- at
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext
context) at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State&
next, Scope& scope, Object& state, Boolean& isCompleted) at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d__14.MoveNext()
--- End of stack trace from previous location where exception was thrown --- at
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
task) at
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d__22.MoveNext() ---
End of stack trace from previous location where exception was thrown
--- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext
context) at
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next,
Scope& scope, Object& state, Boolean& isCompleted) at
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d__17.MoveNext() ---
End of stack trace from previous location where exception was thrown
--- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
task) at
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d__15.MoveNext() ---
End of stack trace from previous location where exception was thrown
--- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
task) at Microsoft.AspNetCore.Builder.RouterMiddleware.d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown --- at
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
task) at TEAPI.Middleware.ExceptionHandlingMiddleware.d__3.MoveNext()
in
/home/web/buildAgent/work/35649df7ceb7c251/src/TEAPI/Middleware/ExceptionHandlingMiddleware.cs:line
26 ClientConnectionId:72a861d4-e94c-4175-9249-bdca4a2b83a0

Related

Itext sharp 5.5.13 random errors like "The page 929 was requested but the document has only 928 pages."

maybe one of you, had the same problem and could help me. We have got random errors during merge ducuments from code below:
public static byte[] MergePdfFiles(List<byte[]> pdfFiles, object lockObject)
{
lock (lockObject)
{
using (MemoryStream ms = new MemoryStream())
{
using (Document doc = new Document())
{
//you also see here that I did not put PdfSmartCopy into a using block. This is because the Document implicitly closes the PdfSmartCopy when it is disposed
PdfSmartCopy copy = new PdfSmartCopy(doc, ms) {CloseStream = false};
doc.Open();
//Loop through each byte array
foreach (var pdfByte in pdfFiles)
{
using (PdfReader pReader = new PdfReader(pdfByte))
{
for (int i = 0; i < pReader.NumberOfPages; i++)
{
PdfImportedPage pdfMerger = copy.GetImportedPage(pReader, i + 1);
copy.AddPage(pdfMerger);
}
copy.FreeReader(pReader);
}
}
}
//Return just before disposing
return ms.ToArray();
}
}
}
This errors occured during close document:
at iTextSharp.text.pdf.PdfWriter.Close()
at iTextSharp.text.pdf.PdfCopy.Close()
at iTextSharp.text.pdf.PdfDocument.Close()
at iTextSharp.text.Document.Close()
at iTextSharp.text.Document.Dispose()
at PdfTools.PdfHelperTools.MergePdfFiles(List`1 pdfFiles, Object lockObject) in C:\src\businessLogic-lib\PdfTools\PdfHelperTools.cs:line 154
at Lawsuit.LettersWithAttachments.LettersWithAttachmentsPrint.MakeControlPrint(Int32 controlPrintId) in C:\src\businessLogic-lib\Lawsuit.LettersWithAttachments\LettersWithAttachmentsPrint.cs:line 611
at Api.BusinessLayer.Manager.AttachmentManager.MakeControlPrint(Int32 controlPrintId) in C:\src\mService-RestService\Api.BusinessLayer\Manager\AttachmentManager.cs:line 94
at Services.Api.Controllers.LawsuitLegalController.PrintAttachmentLegalControlPrint(Int32 controlPrintId) in C:\src\LegalService-RestService\LegalService\Controllers\LawsuitLegalController.cs:line 213
at lambda_method(Closure , Object , Object[] )
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)
at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__0.MoveNext()
Errors such as:
The page 929 was requested but the document has only 928 pages.
The page 693 was requested but the document has only 692 pages.
The page 1090 was requested but the document has only 1089 pages.

ASP.NET Core 2.0 Entityfarmework Core error Ubuntu

Iam about to publish my ASP.NET Core 2.0 Web-Api on my Raspberry pie.
Running my application local on my Windows 10 machine works great, but when I deploy it to the Raspberry (ubuntu.16.04-arm), I have problems with entity-framework.
As soon as a databaseoperation is executed, Iam getting the following error:
fail: Microsoft.EntityFrameworkCore.Query[100100]
An exception occurred in the database while iterating the results of a query for context type 'NFCDataRESTApi.SQLiteDataBase.DataBase'.
System.TypeInitializationException: The type initializer for 'Microsoft.Data.Sqlite.SqliteConnection' threw an exception. ---> System.Reflection.TargetInv ocationException: Exception has been thrown by the target of an invocation. --->System.DllNotFoundException: Unable to load DLL 'e_sqlite3': The specified module or one of its dependencies could not be found.
(Exception from HRESULT: 0x8007007E)
at SQLitePCL.SQLite3Provider_e_sqlite3.NativeMethods.sqlite3_libversion_number()
at SQLitePCL.SQLite3Provider_e_sqlite3.SQLitePCL.ISQLite3Provider.sqlite3_libversion_number()
at SQLitePCL.raw.SetProvider(ISQLite3Provider imp)
at SQLitePCL.Batteries_V2.Init()
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj,Object[] parameters, Object[] arguments)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlagsinvokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Microsoft.Data.Sqlite.Utilities.BundleInitializer.Initialize()
at Microsoft.Data.Sqlite.SqliteConnection..cctor()
--- End of inner exception stack trace ---
at Microsoft.EntityFrameworkCore.Storage.Internal.SqliteRelationalConnection.CreateDbConnection()
at Microsoft.EntityFrameworkCore.Internal.LazyRef1.get_Value()
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open(Boolean errorsExpected)
at Microsoft.EntityFrameworkCore.Storage.Internal.SqliteRelationalConnection.Open(Boolean errorsExpected)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable1.Enumerator.BufferlessMoveNext(Boolean buffer)
at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.<>c__DisplyClass12_02.<Execute>b__0(DbContext c, TState s)
at Microsoft.EntityFrameworkCore.Storage.Internal.NoopExecutionStrategy.Execute[TState,TResult](TState state, Func3 operation, Func3 verifySucceeded)
at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.Execute[TState,TResult](IExecutionStrategy strategy, Func2 operation, Func2 verifySuccee ded, TState state)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable1.Enumerator.MoveNext()
at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.<_TrackEntities>d__172.MoveNext()
at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ExceptionInterceptor1.EnumeratorExceptionInterceptor.MoveNext()
System.TypeInitializationException: The type initializer for 'Microsoft.Data.Sqlite.SqliteConnection' threw an exception. ---> System.Reflection.TargetInvocatio nException: Exception has been thrown by the target of an invocation. ---> System.DllNotFoundException: Unable to load DLL 'e_sqlite3': The specified module or one of its dependencies could not be found.
(Exception from HRESULT: 0x8007007E)
at SQLitePCL.SQLite3Provider_e_sqlite3.NativeMethods.sqlite3_libversion_number()
at SQLitePCL.SQLite3Provider_e_sqlite3.SQLitePCL.ISQLite3Provider.sqlite3_libversion_number()
at SQLitePCL.raw.SetProvider(ISQLite3Provider imp)
at SQLitePCL.Batteries_V2.Init()
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Microsoft.Data.Sqlite.Utilities.BundleInitializer.Initialize()
at Microsoft.Data.Sqlite.SqliteConnection..cctor()
--- End of inner exception stack trace ---
at Microsoft.EntityFrameworkCore.Storage.Internal.SqliteRelationalConnection.CreateDbConnection()
at Microsoft.EntityFrameworkCore.Internal.LazyRef1.get_Value()
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open(Boolean errorsExpected)
at Microsoft.EntityFrameworkCore.Storage.Internal.SqliteRelationalConnection.Open(Boolean errorsExpected)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable1.Enumerator.BufferlessMoveNext(Boolean buffer)
at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.<>c__DisplayClass12_02.<Execute>b__0(DbContext c, TState s)
at Microsoft.EntityFrameworkCore.Storage.Internal.NoopExecutionStrategy.Execute[TState,TResult](TState state, Func3 operation, Func3 verifySucceeded)
at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.Execute[TState,TResult](IExecutionStrategy strategy, Func2 operation, Func2 verifySucceeded, TState state)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable1.Enumerator.MoveNext()
at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.<_TrackEntities>d__172.MoveNext()
at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ExceptionInterceptor1.EnumeratorExceptionInterceptor.MoveNext()
fail: Microsoft.AspNetCore.Server.Kestrel[13]
Connection id "0HL8JR800T0MD", Request id "0HL8JR800T0MD:00000003": An unhandled exception was thrown by the application.
System.TypeInitializationException: The type initializer for 'Microsoft.Data.Sqlite.SqliteConnection' threw an exception. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.DllNotFoundException: Unable to load DLL 'e_sqlite3': The specified module or one of its dependencies could not be found.
(Exception from HRESULT: 0x8007007E)
at SQLitePCL.SQLite3Provider_e_sqlite3.NativeMethods.sqlite3_libversion_number()
at SQLitePCL.SQLite3Provider_e_sqlite3.SQLitePCL.ISQLite3Provider.sqlite3_libversion_number()
at SQLitePCL.raw.SetProvider(ISQLite3Provider imp)
at SQLitePCL.Batteries_V2.Init()
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Microsoft.Data.Sqlite.Utilities.BundleInitializer.Initialize()
at Microsoft.Data.Sqlite.SqliteConnection..cctor()
--- End of inner exception stack trace ---
at Microsoft.EntityFrameworkCore.Storage.Internal.SqliteRelationalConnection.CreateDbConnection()
at Microsoft.EntityFrameworkCore.Internal.LazyRef1.get_Value()
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open(Boolean errorsExpected)
at Microsoft.EntityFrameworkCore.Storage.Internal.SqliteRelationalConnection.Open(Boolean errorsExpected)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable1.Enumerator.BufferlessMoveNext(Boolean buffer)
at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.<>c__DisplayClass12_02.<Execute>b__0(DbContext c, TState s)
at Microsoft.EntityFrameworkCore.Storage.Internal.NoopExecutionStrategy.Execute[TState,TResult](TState state, Func3 operation, Func3 verifySucceeded)
at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.Execute[TState,TResult](IExecutionStrategy strategy, Func2 operation, Func2 verifySucceeded, TState state)
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable1.Enumerator.MoveNext()
at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.<_TrackEntities>d__172.MoveNext()
at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ExceptionInterceptor1.EnumeratorExceptionInterceptor.MoveNext()
at NFCDataRESTApi.Repositories.PermissionRepository.GetAdminUsers() in C:\Users\morit\Desktop\NFCRESTApi\RESTApi\RESTApi\Repositories\PermissionRepository.cs:line 28
at NFCDataRESTApi.Filters.ValidateUserFilter.OnActionExecuting(ActionExecutingContext context) in C:\Users\morit\Desktop\NFCRESTApi\RESTApi\RESTApi\Filters\ValidateUserFilter.cs:line 27
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d__14.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d__22.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope&scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d__17.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d__15.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Builder.RouterMiddleware.d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Hosting.Internal.RequestServicesContainerMiddleware.d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.Frame`1.d__2.MoveNext()
The intersting part probably is:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.DllNotFoundException: Unable to load DLL 'e_sqlite3': The specified module or one of its dependencies could not be found.
Iam using entity framework core
Any advices?
Edit:
My csproj:
<ItemGroup>
<DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.0" />
<PackageReference Include="SQLitePCL.raw" Version="0.9.4-pre1" />
<PackageReference Include="Swashbuckle.AspNetCore" Version="1.0.0" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.0.0" />
</ItemGroup>

if dotnet restore didn't work: possibly you need local/linux libraries on which the nuget package depends on?
You can install sqllite through app-get. Allthough i don't think this would be necessary. But I had http/ssl issues before on dotnet docker image, i had to install extra linux libraries.
try this: https://iqbalnaved.wordpress.com/2014/07/10/how-to-install-sqlite-3-8-2-on-ubuntu-14-04-and-commands-for-creating-database-and-tables/

Publishing ASP.NET Core+EF to Azure Unable to load DLL 'sni.dll'

Publishing ASP.NET Core application with EF to Azure Web App results with this error when connecting SQL server:
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[1]
Executing action method SearchDocumentsWebApp.Controllers.SearchApiController.SearchByTopic (SearchDocumentsWebApp) with arguments (info) - ModelState is Valid
warn: Microsoft.EntityFrameworkCore.Query.Internal.SqlServerQueryCompilationContextFactory[8]
The LINQ expression '[e].Id.Equals(__email_0, CurrentCultureIgnoreCase)' could not be translated and will be evaluated locally. To configure this warning use the DbContextOptionsBuilder.ConfigureWarnings API (event id 'RelationalEventId.QueryClientEvaluationWarning'). ConfigureWarnings can be used when overriding the DbContext.OnConfiguring method or using AddDbContext on the application service provider.
warn: Microsoft.EntityFrameworkCore.Query.Internal.SqlServerQueryCompilationContextFactory[8]
The LINQ expression 'SingleOrDefault()' could not be translated and will be evaluated locally. To configure this warning use the DbContextOptionsBuilder.ConfigureWarnings API (event id 'RelationalEventId.QueryClientEvaluationWarning'). ConfigureWarnings can be used when overriding the DbContext.OnConfiguring method or using AddDbContext on the application service provider.
fail: Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler[1]
An exception occurred in the database while iterating the results of a query.
System.TypeInitializationException: The type initializer for 'System.Data.SqlClient.TdsParser' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.Data.SqlClient.SNILoadHandle' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'sni.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
at System.Data.SqlClient.SNINativeMethodWrapper.SNIInitialize(IntPtr pmo)
at System.Data.SqlClient.SNILoadHandle..ctor()
at System.Data.SqlClient.SNILoadHandle..cctor()
--- End of inner exception stack trace ---
at System.Data.SqlClient.TdsParser..cctor()
--- End of inner exception stack trace ---
at System.Data.SqlClient.TdsParser..ctor(Boolean MARS, Boolean fAsynchronous)
at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, TimeoutTimer timeout)
at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, Boolean applyTransientFaultHandling)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.Open()
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open()
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable.Enumerator.BufferlessMoveNext(Boolean buffer)
at Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](Func`2 operation, Func`2 verifySucceeded, TState state)
at Microsoft.EntityFrameworkCore.Query.QueryMethodProvider.<_ShapedQuery>d__3`1.MoveNext()
at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
at lambda_method(Closure , QueryContext )
at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.<>c__DisplayClass20_0`1.<CompileQueryCore>b__0(QueryContext qc)
System.TypeInitializationException: The type initializer for 'System.Data.SqlClient.TdsParser' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.Data.SqlClient.SNILoadHandle' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'sni.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
at System.Data.SqlClient.SNINativeMethodWrapper.SNIInitialize(IntPtr pmo)
at System.Data.SqlClient.SNILoadHandle..ctor()
at System.Data.SqlClient.SNILoadHandle..cctor()
--- End of inner exception stack trace ---
at System.Data.SqlClient.TdsParser..cctor()
--- End of inner exception stack trace ---
at System.Data.SqlClient.TdsParser..ctor(Boolean MARS, Boolean fAsynchronous)
at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, TimeoutTimer timeout)
at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, Boolean applyTransientFaultHandling)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.Open()
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open()
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable.Enumerator.BufferlessMoveNext(Boolean buffer)
at Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](Func`2 operation, Func`2 verifySucceeded, TState state)
at Microsoft.EntityFrameworkCore.Query.QueryMethodProvider.<_ShapedQuery>d__3`1.MoveNext()
at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
at lambda_method(Closure , QueryContext )
at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.<>c__DisplayClass20_0`1.<CompileQueryCore>b__0(QueryContext qc)
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[2]
Executed action SearchDocumentsWebApp.Controllers.SearchApiController.SearchByTopic (SearchDocumentsWebApp) in 3176.7883ms
fail: Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware[0]
An unhandled exception has occurred: The type initializer for 'System.Data.SqlClient.TdsParser' threw an exception.
System.TypeInitializationException: The type initializer for 'System.Data.SqlClient.TdsParser' threw an exception. ---> System.TypeInitializationException: The type initializer for 'System.Data.SqlClient.SNILoadHandle' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'sni.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
at System.Data.SqlClient.SNINativeMethodWrapper.SNIInitialize(IntPtr pmo)
at System.Data.SqlClient.SNILoadHandle..ctor()
at System.Data.SqlClient.SNILoadHandle..cctor()
--- End of inner exception stack trace ---
at System.Data.SqlClient.TdsParser..cctor()
--- End of inner exception stack trace ---
at System.Data.SqlClient.TdsParser..ctor(Boolean MARS, Boolean fAsynchronous)
at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, TimeoutTimer timeout)
at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, Boolean applyTransientFaultHandling)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.Open()
at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open()
at Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable.Enumerator.BufferlessMoveNext(Boolean buffer)
at Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](Func`2 operation, Func`2 verifySucceeded, TState state)
at Microsoft.EntityFrameworkCore.Query.QueryMethodProvider.<_ShapedQuery>d__3`1.MoveNext()
at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
at lambda_method(Closure , QueryContext )
at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.<>c__DisplayClass20_0`1.<CompileQueryCore>b__0(QueryContext qc)
at SearchDocumentsWebApp.Controllers.SearchApiController.<SearchByTopic>d__8.MoveNext() in C:\Users\gubert\Source\Repos\Amdocs\SearchDocumentsWebApp\src\SearchDocumentsWebApp\Controllers\SearchAPIController.cs:line 76
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeActionMethodAsync>d__27.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeNextActionFilterAsync>d__25.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeNextResourceFilter>d__22.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ResourceExecutedContext context)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeAsync>d__20.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Builder.RouterMiddleware.<Invoke>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware`1.<Invoke>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware`1.<Invoke>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware`1.<Invoke>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware`1.<Invoke>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Cors.Infrastructure.CorsMiddleware.<Invoke>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.ApplicationInsights.AspNetCore.RequestTrackingMiddleware.<Invoke>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.<Invoke>d__6.MoveNext()
here's my project.json:
{
"buildOptions": {
"emitEntryPoint": true,
"preserveCompilationContext": true
},
"dependencies": {
"Microsoft.ApplicationInsights.AspNetCore": "1.0.2",
"Microsoft.AspNetCore.Authentication.Cookies": "1.1.0",
"Microsoft.AspNetCore.Authentication.OpenIdConnect": "1.1.0",
"Microsoft.AspNetCore.Authorization": "1.1.0",
"Microsoft.AspNetCore.Diagnostics": "1.1.0",
"Microsoft.AspNetCore.Mvc": "1.1.0",
"Microsoft.AspNetCore.Mvc.Core": "1.1.0",
"Microsoft.AspNetCore.Mvc.TagHelpers": "1.1.0",
"Microsoft.AspNetCore.Server.IISIntegration": "1.1.0",
"Microsoft.AspNetCore.Server.Kestrel": "1.1.0",
"Microsoft.AspNetCore.StaticFiles": "1.1.0",
"Microsoft.EntityFrameworkCore.Design": "1.1.0",
"Microsoft.EntityFrameworkCore.SqlServer": "1.1.0",
"Microsoft.EntityFrameworkCore.Tools": "1.1.0-preview4-final",
"Microsoft.Extensions.Configuration.Binder": "1.1.0",
"Microsoft.Extensions.Configuration.EnvironmentVariables": "1.1.0",
"Microsoft.Extensions.Configuration.FileExtensions": "1.1.0",
"Microsoft.Extensions.Configuration.Json": "1.1.0",
"Microsoft.Extensions.Logging": "1.1.0",
"Microsoft.Extensions.Logging.Console": "1.1.0",
"Microsoft.Extensions.Logging.Debug": "1.1.0",
"Microsoft.IdentityModel.Protocols.OpenIdConnect": "2.1.0",
"Microsoft.NETCore.App": "1.1.0",
"Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.1.0",
"Newtonsoft.Json": "9.0.2-beta1",
"WindowsAzure.Storage": "7.2.1"
},
"frameworks": {
"netcoreapp1.0": {
"imports": [
"dotnet5.6",
"dnxcore50",
"portable-net45+win8"
]
}
},
"publishOptions": {
"include": [
"wwwroot",
"Views",
"web.config",
"appsettings.json",
"appsettings.*.json",
"LICENSE.txt"
]
},
"runtimeOptions": {
"gcServer": true
},
"runtimes": {
"win10-x64": {}
},
"scripts": {
//"prepublish": [ "npm install", "npm recompileapp" ],
"postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
},
"tools": {
"Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final",
"Microsoft.EntityFrameworkCore.Tools": {
"version": "1.0.0-preview2-final",
"type": "platform",
"imports": [
"portable-net45+win8+dnxcore50",
"portable-net45+win8"
]
}
}
}
I even tried to change the "type" property of "Microsoft.EntityFrameworkCore.Tools" to "platform" so it will copy it's dlls, also tried to copy "System.Data.SqlClient.dll" to /wwwroot/bin folder restarted the app but still get the same error.
on my local machine it works

SOLVED!
azure web apps runs on windows 2012 r2, so I needed to set win7 runtimes and change publish settings to win7-x64:
"runtimes": {
"win10-x64": {},
"win7-x64": {}
},

I managed to tweak this to my scenario and got the code working. The above set up didn't work for me though - I had to ensure that I manually deleted all of the files on the site and THEN deployed using win7-x64

Get 2 columns of table in a relationship

I have the following Entity Framework 7 entities:
public class EbookFile {
public Int32 EbookId { get; set; }
public Int32 FileId { get; set; }
public virtual Ebook Ebook { get; set; }
public virtual File File { get; set; }
}
public class File {
public Int32 Id { get; set; }
public Byte[] Content { get; set; }
public String Name { get; set; }
public virtual ICollection<EbookFile> EbooksFiles { get; set; }
}
Given an EbookId I need to get Ids and Names of all files associated with it:
Dictionary<Int32, Dictionary<String, Int32>> files = await _context
.EbooksFiles
.Include(x => x.File)
.Where(x => result.Select(y => y.Id).Contains(x.EbookId))
.GroupBy(x => x.EbookId)
.ToDictionaryAsync(x => x.Key, x => x.ToDictionary(y => y.File.Name, y => y.File.Id));
The problem is that I am also getting the Content which I do not want:
SELECT [x].[EbookId], [x].[FileId], [f].[Id], [f].[Content], [f].[Name]
FROM [EbooksFiles] AS [x]
INNER JOIN [Files] AS [f] ON [x].[FileId] = [f].[Id]
How can I improve my Linq expression to get only the FileId and Name into a dictionary?
TEST QUERY
var ids = new Int32[] { 1, 2 };
var files = _context
.EbooksFiles
.Where(x => ids.Contains(x.EbookId))
.Select(x => new { x.EbookId, x.File.Name, x.File.Id })
.GroupBy(x => x.EbookId)
.ToList();
STACK TRACE
2016-04-29 15:13:40 [Error] An unhandled exception has occurred while executing the request
System.InvalidOperationException: Sequence contains more than one element
at System.Linq.Enumerable.Single[TSource](IEnumerable1 source)
at Microsoft.Data.Entity.Query.EntityQueryModelVisitor.<>c__DisplayClass79_01.b__0(IEnumerable1 ps, IQuerySource qs)
at Microsoft.Data.Entity.Query.EntityQueryModelVisitor.BindMemberExpressionCore[TResult](MemberExpression memberExpression, IQuerySource querySource, Func3 memberBinder)
at Microsoft.Data.Entity.Query.EntityQueryModelVisitor.BindMemberExpression[TResult](MemberExpression memberExpression, IQuerySource querySource, Func3 memberBinder)
at Microsoft.Data.Entity.Query.EntityQueryModelVisitor.BindMemberExpression(MemberExpression memberExpression, Action2 memberBinder)
at Microsoft.Data.Entity.Query.ExpressionVisitors.Internal.RequiresMaterializationExpressionVisitor.VisitMember(MemberExpression memberExpression)
at System.Linq.Expressions.MemberExpression.Accept(ExpressionVisitor visitor)
at Microsoft.Data.Entity.Query.ExpressionVisitors.ExpressionVisitorBase.Visit(Expression expression)
at System.Linq.Expressions.ExpressionVisitor.VisitAndConvert[T](ReadOnlyCollection1 nodes, String callerName)
at Remotion.Linq.Parsing.RelinqExpressionVisitor.VisitNew(NewExpression expression)
at System.Linq.Expressions.NewExpression.Accept(ExpressionVisitor visitor)
at Microsoft.Data.Entity.Query.ExpressionVisitors.ExpressionVisitorBase.Visit(Expression expression)
at Remotion.Linq.Clauses.ResultOperators.GroupResultOperator.TransformExpressions(Func2 transformation)
at Remotion.Linq.QueryModel.TransformExpressions(Func2 transformation)
at Microsoft.Data.Entity.Query.ExpressionVisitors.Internal.RequiresMaterializationExpressionVisitor.FindQuerySourcesRequiringMaterialization(QueryModel queryModel)
at Microsoft.Data.Entity.Query.QueryCompilationContext.FindQuerySourcesRequiringMaterialization(EntityQueryModelVisitor queryModelVisitor, QueryModel queryModel)
at Microsoft.Data.Entity.Query.EntityQueryModelVisitor.CreateQueryExecutor[TResult](QueryModel queryModel)
at Microsoft.Data.Entity.Storage.Database.CompileQuery[TResult](QueryModel queryModel)
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.Data.Entity.Query.Internal.QueryCompiler.<>c__DisplayClass18_01.b__0()
at Microsoft.Data.Entity.Query.Internal.CompiledQueryCache.GetOrAddQuery[TResult](Object cacheKey, Func1 compiler)
at Microsoft.Data.Entity.Query.Internal.QueryCompiler.CompileQuery[TResult](Expression query)
at Microsoft.Data.Entity.Query.Internal.QueryCompiler.Execute[TResult](Expression query)
at Microsoft.Data.Entity.Query.Internal.EntityQueryProvider.Execute[TResult](Expression expression)
at Remotion.Linq.QueryableBase1.GetEnumerator()
at System.Collections.Generic.List1..ctor(IEnumerable1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable1 source)
at EbookGetApiModelHandler.QueryHandler.<Handle>d__4.MoveNext() in \Handlers\EbookGetApiModelHandler.cs:line 85
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at MediatR.Mediator.<SendAsync>d__41.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter1.GetResult()
at Controllers.EbookApiController.<Get>d__2.MoveNext() in \Controllers\EbookApiController.cs:line 30
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Mvc.Controllers.ControllerActionExecutor.<CastToObject>d__81.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Mvc.Controllers.ControllerActionInvoker.d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.AspNet.Mvc.Controllers.FilterActionInvoker.d__53.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNet.Mvc.Controllers.FilterActionInvoker.d__44.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Mvc.Infrastructure.MvcRouteHandler.d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Mvc.Routing.InnerAttributeRoute.d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Routing.RouteCollection.d__9.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Builder.RouterMiddleware.d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Authentication.AuthenticationMiddleware1.<Invoke>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNet.Authentication.AuthenticationMiddleware1.d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Authentication.AuthenticationMiddleware1.<Invoke>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNet.Authentication.AuthenticationMiddleware1.d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Authentication.AuthenticationMiddleware1.<Invoke>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNet.Authentication.AuthenticationMiddleware1.d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Authentication.AuthenticationMiddleware1.<Invoke>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNet.Authentication.AuthenticationMiddleware1.d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Localization.RequestLocalizationMiddleware.d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Diagnostics.Entity.MigrationsEndPointMiddleware.d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Diagnostics.Entity.DatabaseErrorPageMiddleware.d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNet.Diagnostics.Entity.DatabaseErrorPageMiddleware.d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.AspNet.Diagnostics.DeveloperExceptionPageMiddleware.d__7.MoveNext()

I think you forgot .Include(x => x.File) in your test query

how to seperate aspnet.identity.entityframework to its own assembly

I am trying to move the appicationDBContext out of the asp.net MVC5 web application project into its own assembly. i have tried creating a class library for the data access layer and using nuget to install the aspnet.identity assemblies.
I cannot get this to work. I have tried a few different examples but am not sure how is the best way to do this.
i have created a basic example in codeplex :
https://testdal.codeplex.com/
this is an empty mvc5 website with a reference to a class library DAL. In DAL is the models from default sample website along with the references and some basic test code to try and register a user.
I get the following error :
Instance failure.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: Instance failure.
Source Error:
Line 18:
Line 19: var user = new ApplicationUser() { UserName = "paul" };
Line 20: var result = UserManager.Create(user, "123456");
Line 21:
Line 22:
Source File: c:\Users\paul\Documents\Visual Studio 2013\Projects\emptyWebsite\DAL\Register.cs Line: 20
Stack Trace:
[InvalidOperationException: Instance failure.]
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +414
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +78
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +196
System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +146
System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +16
System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +94
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +110
System.Data.SqlClient.SqlConnection.Open() +96
System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.<open>
b__36(DbConnection t, DbConnectionInterceptionContext c) +36
System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch(TTarget target, Action`2 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed) +138
System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.Open(DbConnection connection, DbInterceptionContext interceptionContext) +477
System.Data.Entity.SqlServer.<>c__DisplayClass34.<usingconnection>
b__32() +344
System.Data.Entity.SqlServer.<>c__DisplayClass1.<execute>
b__0() +34
System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Func`1 operation) +251
System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation) +196
System.Data.Entity.SqlServer.SqlProviderServices.UsingConnection(DbConnection sqlConnection, Action`1 act) +420
System.Data.Entity.SqlServer.SqlProviderServices.UsingMasterConnection(DbConnection sqlConnection, Action`1 act) +335
System.Data.Entity.SqlServer.SqlProviderServices.CreateDatabaseFromScript(Nullable`1 commandTimeout, DbConnection sqlConnection, String createDatabaseScript) +151
System.Data.Entity.SqlServer.SqlProviderServices.DbCreateDatabase(DbConnection connection, Nullable`1 commandTimeout, StoreItemCollection storeItemCollection) +287
System.Data.Entity.Core.Common.DbProviderServices.CreateDatabase(DbConnection connection, Nullable`1 commandTimeout, StoreItemCollection storeItemCollection) +110
System.Data.Entity.Core.Objects.ObjectContext.CreateDatabase() +236
System.Data.Entity.Migrations.Utilities.DatabaseCreator.Create(DbConnection connection) +143
System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase) +207
System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase) +42
System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration) +136
System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update() +33
System.Data.Entity.Internal.DatabaseCreator.CreateDatabase(InternalContext internalContext, Func`3 createMigrator, ObjectContext objectContext) +175
System.Data.Entity.Internal.InternalContext.CreateDatabase(ObjectContext objectContext, DatabaseExistenceState existenceState) +150
System.Data.Entity.Database.Create(DatabaseExistenceState existenceState) +444
System.Data.Entity.CreateDatabaseIfNotExists`1.InitializeDatabase(TContext context) +288
System.Data.Entity.Internal.<>c__DisplayClassf`1.<createinitializationaction>
b__e() +165
System.Data.Entity.Internal.InternalContext.PerformInitializationAction(Action action) +110
System.Data.Entity.Internal.InternalContext.PerformDatabaseInitialization() +660
System.Data.Entity.Internal.LazyInternalContext.<initializedatabase>
b__4(InternalContext c) +31
System.Data.Entity.Internal.RetryAction`1.PerformAction(TInput input) +143
System.Data.Entity.Internal.LazyInternalContext.InitializeDatabaseAction(Action`1 action) +292
System.Data.Entity.Internal.LazyInternalContext.InitializeDatabase() +123
System.Data.Entity.Internal.InternalContext.Initialize() +42
System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +39
System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() +137
System.Data.Entity.Internal.Linq.InternalSet`1.Include(String path) +41
System.Data.Entity.Infrastructure.DbQuery`1.Include(String path) +142
System.Data.Entity.QueryableExtensions.Include(IQueryable`1 source, String path) +205
System.Data.Entity.QueryableExtensions.Include(IQueryable`1 source, Expression`1 path) +305
Microsoft.AspNet.Identity.EntityFramework.UserStore`6.GetUserAggregateAsync(Expression`1 filter) +610
Microsoft.AspNet.Identity.EntityFramework.UserStore`6.FindByNameAsync(String userName) +1069
Microsoft.AspNet.Identity.UserManager`2.FindByNameAsync(String userName) +177
Microsoft.AspNet.Identity.<validateusername>
d__4.MoveNext() +803
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
System.Runtime.CompilerServices.TaskAwaiter.GetResult() +21
Microsoft.AspNet.Identity.<validateasync>
d__0.MoveNext() +468
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
System.Runtime.CompilerServices.ConfiguredTaskAwaiter.GetResult() +24
Microsoft.AspNet.Identity.<createasync>
d__0.MoveNext() +846
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
System.Runtime.CompilerServices.ConfiguredTaskAwaiter.GetResult() +24
Microsoft.AspNet.Identity.<createasync>
d__d.MoveNext() +1113
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +24
Microsoft.AspNet.Identity.AsyncHelper.RunSync(Func`1 func) +228
Microsoft.AspNet.Identity.UserManagerExtensions.Create(UserManager`2 manager, TUser user, String password) +260
DAL.Register.register() in c:\Users\paul\Documents\Visual Studio 2013\Projects\emptyWebsite\DAL\Register.cs:20
emptyWebsite.Controllers.HomeController.Index() in c:\Users\paul\Documents\Visual Studio 2013\Projects\emptyWebsite\emptyWebsite\Controllers\HomeController.cs:20
lambda_method(Closure , ControllerBase , Object[] ) +101
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +59
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +435
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +60
System.Web.Mvc.Async.ActionInvocation.InvokeSynchronousActionMethod() +76
System.Web.Mvc.Async.AsyncControllerActionInvoker.<begininvokesynchronousactionmethod>
b__36(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +36
System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +73
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +136
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +49
System.Web.Mvc.Async.AsyncInvocationWithFilters.<invokeactionmethodfilterasynchronouslyrecursive>
b__3c() +117
System.Web.Mvc.Async.<>c__DisplayClass45.<invokeactionmethodfilterasynchronouslyrecursive>
b__3e() +323
System.Web.Mvc.Async.<>c__DisplayClass30.<begininvokeactionmethodwithfilters>
b__2f(IAsyncResult asyncResult) +44
System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +47
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +136
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +50
System.Web.Mvc.Async.<>c__DisplayClass28.<begininvokeaction>
b__19() +72
System.Web.Mvc.Async.<>c__DisplayClass1e.<begininvokeaction>
b__1b(IAsyncResult asyncResult) +185
System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +42
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +133
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +56
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +40
System.Web.Mvc.Controller.<beginexecutecore>
b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +34
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +70
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +139
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +44
System.Web.Mvc.Controller.<beginexecute>
b__15(IAsyncResult asyncResult, Controller controller) +39
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +62
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +139
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +39
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +39
System.Web.Mvc.MvcHandler.<beginprocessrequest>
b__4(IAsyncResult asyncResult, ProcessRequestState innerState) +39
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +70
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +139
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +40
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9514928
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
Can anybody help me find a simple way to seperate the models from the UI project?
Thanks
Paul

i managed to get around this problem after trying the following :
Moving ASP.NET Identity model to class library
http://www.umbraworks.net/bl0g/rebuildall/2013/10/22/Moving_ASP_NET_Identity_model_into_another_assembly
I did try this originally and and tried many similar ways although i found starting from fresh, deleting the database and specifying a specific db location helped. I have later thought that possibly turning on data migrations would have resolved the issue. This is still dependent on the connection string in the web.config so is not completely decoupled but otherwise seems to now work
thanks