I get this error :
Config Error There is a duplicate 'entityFramework' section defined
Config File \\?\D:\koopaproject\koopaproject\web.config
9: <!--For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468-->
10: <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />11: </configSections>
In my web.config:
<configSections>
<!--For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468-->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
</configSections>
<connectionStrings>
<add name="koopaco.com_koopaContext" connectionString="Data Source=localhost;Initial Catalog=koopaco.com_koopa;Persist Security Info=True;User ID=koopaco.com_zohre;Password=136613;MultipleActiveResultSets=True" providerName="System.Data.SqlClient" />
</connectionStrings>
And I installed :
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" />
<bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
</dependentAssembly>
</assemblyBinding>
But I still get this error.
I just had the same problem. The cause of my issue is that whilst I was running the application via IIS (as an application under the Default Web Site), there was a Web.config in the root that also had the <entityFramework> section defined.
Removed the Web.config from the root, and problem was solved.
Add this to web.config file
<entityFramework xdt:Transform="RemoveAll" />
If you have this problem while testing in IIS Express, look for a conflict in the higher-level "web.config" used by IIS Express. I found that I had a problem in C:\Users\yourUserIDHere\Documents\IISExpress\config**applicationhost.config**.
applicationhost.config is a sort of higher-level web.config for IIS Express.
My site was defined in there with a left over folder location on my C: drive where I had run an older copy of my project in the past.
Add this to web.release.config file
<entityFramework xdt:Transform="RemoveAll" />
so that when you deploy the web application entityFramework will not be on the web app's config file
Related
Hi I am trying to use EF6 with npsql under Asp.net 5. I am using a simple console (asp.net5) for testing and a separate class lib (.net 4.5) for the data access as a simple test enviroment. Have installed EF6 using
nuget EntityFramework6.Npgsql. Have also removed .net core dependencies from project.json file.
The problem i keep on getting the following error.
An exception of type 'System.NotSupportedException' occurred in EntityFramework.dll but was not handled in user code
Additional information: Unable to determine the provider name for provider factory of type 'Npgsql.NpgsqlFactory'. Make sure that the ADO.NET provider is installed or registered in the application config.
It seems to have trouble with the provider name for 'Npgsql.NpgsqlFactory'. But the provider name in the configuration is set. May be it needs to be set when it was compiled. Any ideas?
the app.config file is as follows
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
<entityFramework>
<providers>
<provider invariantName="Npgsql.NpgsqlFactory" type="Npgsql.NpgsqlServices, Npgsql.EntityFramework"></provider>
</providers>
<defaultConnectionFactory type="Npgsql.NpgsqlConnectionFactory, Npgsql" />
</entityFramework>
<system.data>
<DbProviderFactories>
<remove invariant="Npgsql" />
<add name="Npgsql" invariant="Npgsql" description=".Net Framework Data Provider for Postgresql" type="Npgsql.NpgsqlFactory, Npgsql" />
</DbProviderFactories>
</system.data>
</configuration>
Any help will be much appreciated. Many thanks.
You are missing the complete assembly information for npgsql in your configuration. Please, check this answer for more information about it and the complete information:
https://stackoverflow.com/a/35440114/246097
I hope it helps.
I am using SQL Server CE 4.0 along with entity framework 6.0. Everythings work fine until I wanted to enable a N-Tier syncing mechanism with a remote database using a WCF service and the Sync Framework 2.1.
I followed this tutorial and use the JTune's workaround to overcome the issue that the SyncFramework 2.1 and SQLSErverCompactCE 4.0 compatibility is not supported. Which is simply a runtime binding redirect in app.config for System.Data.SqlServerCE.dll 4.0.0
Then I get the following App.config file
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlCeConnectionFactory, EntityFramework">
<parameters>
<parameter value="System.Data.SqlServerCe.4.0" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
<provider invariantName="System.Data.SqlServerCe.4.0" type="System.Data.Entity.SqlServerCompact.SqlCeProviderServices, EntityFramework.SqlServerCompact" />
</providers>
</entityFramework>
<connectionStrings>
<add name="Entities" connectionString="metadata=res://*/Persistence.Model1.csdl|res://*/Persistence.Model1.ssdl|res://*/Persistence.Model1.msl;provider=System.Data.SqlServerCe.4.0;provider connection string="data source=|DataDirectory|\XXXX.sdf"" providerName="System.Data.EntityClient" />
</connectionStrings>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Data.SqlServerCe" publicKeyToken="89845DCD8080CC91" culture="neutral"/>
<bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0"/>
</dependentAssembly>
</assemblyBinding>
</runtime>
<system.data>
<DbProviderFactories>
<remove invariant="System.Data.SqlServerCe.4.0" />
<add name="Microsoft SQL Server Compact Data Provider 4.0" invariant="System.Data.SqlServerCe.4.0" description=".NET Framework Data Provider for Microsoft SQL Server Compact" type="System.Data.SqlServerCe.SqlCeProviderFactory, System.Data.SqlServerCe, Version=4.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" />
</DbProviderFactories>
</system.data>
</configuration>
It works fine on some configuration but may fail with the following error.
No Entity Framework provider found for the ADO.NET provider with invariant name 'System.Data.SqlServerCe.3.5'. Make sure the provider is registered in the 'entityFramework' section of the application config file. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information.
Remark that the solution provided in this question is not viable, because in my situation, I really need the binding redirect to use SyncFramework.
Is there a way to tell entity framework not to look for a SQL Server CE 3.5 provider and only for the 4.0?
I think I got this. When SQL Server CE 3.5 is installed on the machine then its added to the DbProviders in the machine.config and depending on its position regarding the 4.0 version you may have the failure (see my comment above). It looks like the app.config lets you the possibility to remove a DbProviderFactory. I added the following line in my app.config and the problem seems to be resolved
<system.data>
<DbProviderFactories>
<remove invariant="System.Data.SqlServerCe.3.5" />
</DbProviderFactories>
</system.data>
Until recently my solution only had 1 web project. It is deployed to Azure.
There then became a requirement for WebJobs, which should share the data layer, so I extracted out any EntityFramework code (Configuration/IdentityModels) into their own project.
Now when I try to use the command line to "add-migration" I get the following error:
An error occurred accessing the database. This usually means that the
connection to the database failed. Check that the connection string is
correct and that the appropriate DbContext constructor is being used
to specify it or find it in the application's config file. See
http://go.microsoft.com/fwlink/?LinkId=386386 for information on
DbContext and connections. See the inner exception for details of the
failure.
Here is what the App.Config file looks like for the EF project:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --></configSections>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
<connectionStrings>
<add name="Default" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=Sample;Integrated Security=True;Connect timeout=15;Encrypt=False;TrustServerCertificate=False" providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
Can anyone help please?
I just had the same problem.
It seems there is a required order of configuration child elements.
In my case I changed them to:
<configSections>...</configSections>
<startup>...</startup>
<system.data>...</system.data>
<connectionStrings>...</connectionStrings>
<entityFramework>...</entityFramework>
Am taking a Silverlight / WCF RIA Service project from EF4 to EF5. Target is .NET4.5
Here is a spike - am using a DB First approach. ie create edmx, then use the Domain Services Classes Wizard
So looking good so far as have
EntityFramework (5.0.0.0)
Microsoft.ServiceModel.DomainServices.EntityFramework (4.0.0.0) DbDomainService in here
System.Data.Entity (4.0.0.0)
as opposed to old way of:
EntityFramework (5.0.0.0)
System.Data.Entity (4.0.0.0)
System.ServiceModel.DomainServices.EntityFramework (4.0.0.0) LinqToEntitiesDomainService in here
then have put a simple UI on to access the 2 table db and it worked
Problem: This web.config isn't what I expected:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<sectionGroup name="system.serviceModel">
<section name="domainServices" type="System.ServiceModel.DomainServices.Hosting.DomainServicesSection, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" allowDefinition="MachineToApplication" requirePermission="false" />
</sectionGroup>
</configSections>
<system.web>
<httpModules>
<add name="DomainServiceModule" type="System.ServiceModel.DomainServices.Hosting.DomainServiceHttpModule, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
</httpModules>
<compilation debug="true" targetFramework="4.5">
<assemblies>
<add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</assemblies>
</compilation>
<!-- profile stuff commented out-->
</system.web>
<system.webServer>
<validation validateIntegratedModeConfiguration="false" />
<modules runAllManagedModulesForAllRequests="true">
<add name="DomainServiceModule" preCondition="managedHandler" type="System.ServiceModel.DomainServices.Hosting.DomainServiceHttpModule, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
</modules>
</system.webServer>
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=(LocalDB)\v11.0;Initial Catalog=aspnet-BusinessApplication5.Web-20130603151851;Integrated Security=True" providerName="System.Data.SqlClient" />
<add name="TestDBEntities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string="data source=.\SQLEXPRESS;initial catalog=TestDB;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
</configuration>
I was expecting to have to put in:
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.0.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
Got these bits of config from the following. Perhaps they are all codefirst specific.
https://github.com/jeffhandley/riabooks
http://jeffhandley.com/archive/2012/12/10/RIA-Services-NuGet-Package-Updates-ndash-Including-Support-for-EntityFramework.aspx
http://mcasamento.blogspot.co.uk/2012/10/entity-framework-5-code-first-and-wcf.html
The RIA Services dll is compiled against EF 4, not EF5, so the binding Redirect is used to make everything work. If/when RIA Services is open sourced there will be a new release of RiaServices.EntityFramework that will be compiled against EF 5 and EF 6. One of the benefits of open source will be the ability to put out as many NuGet packages as I want to support all combinations.
Have a class library and a WPF application and am trying to contain all the Entity Framework items within the class library and use an interface to get the info out. Everything is setup but I get this message each time I try it out:
Message "The type initializer for 'System.Data.Entity.Internal.AppConfig' threw an exception."
When I looked at the Inner Exceptions it appeared it couldn't find version 5.0.0.0 of EntityFramework and when I checked the Reference for it, it was 4.4.0.0. Tried uninstalling and reinstalling EntityFramework via NuGet but having no luck. Any ideas on what to try next?
App Config:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.4.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
</entityFramework>
</configuration>
I think this is a problem with your app.Config prehaps you dont have the following:
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.4.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
</entityFramework>
This needs to be in the config file for your application entry point (whatever executable/webapp is running/using your class library)
A key detail to note is that EF4.4 is released inside the EF5 package and is used for non-.NET 4.5 applications (ie if you have .net 4.5 your reference will be 5.0 otherwise with .net 4 it will be 4.4)
Uninstalled EntityFramework
Updated Class Library to .Net Version 4.5
Reinstalled EntityFramework
Now all working.
I have tried changing the version of EF in the webconfig to the current installed version of the EF on the project and everything works smoothly.