I have a app that is using a prepopulated database - following the instructions from here:
http://www.reigndesign.com/blog/using-your-own-sqlite-database-in-android-applications/
The app is working fine on Android 4.1, 4.3, 5.0, 5.1 - however on 4.0.3 and 4.0 it crashes with
E/SqliteDatabaseCpp(551): SELECT locale FROM android_metadata failed
E/SQLiteDatabase(551): Failed to open the database. closing it.
E/SQLiteDatabase(551): android.database.sqlite.SQLiteException: no such table: android_metadata
I've double checked and the metadata table has been created on the database as per the article.
The error is being generated from:
myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);
I've read similar threads and guys have got around this error using SQLiteDatabase.NO_LOCALIZED_COLLATORS if they did not have the android_metadata table created.
I have tried the above - same error.
Here is the snippet of code:
private static String DB_PATH = "/data/data/org.example/databases/";
private static String DB_NAME = "model_paint_conversion.db";
myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);
Have also tried removing the path - I then get a error copying the database.
Any idea what it crashes on 4.0 and 4.0.3 but works on the other versions?
After some more digging around - viewed the db file that is copied to the emulator and found the metadata table was indeed missing. Very odd - I def created it.
Now recreated it and its working.
try SQLiteDatabase.NO_LOCALIZED_COLLATORS with SQLiteDatabase.OPEN_READONLY and add uses permission for WRITE_SETTINGS in manifest.
I had a same problem and I did like this and worked for me...
Related
After much effort getting my MVC5 vb.net app configured with Npgsql and EntityFramework6.Npgsql I can connect to the postgres database fine using the Entity Data Model Wizard in Visual Studio 2017, creating a new connection with Data Provider of PostgreSQL Database, entering my database server details and testing the connection (succeeds). I can also double-click the EDMX file and add tables, etc as expected. This is my first project that talks to a postgreSQL database (normally use MS SQL Server). Everything seems to be happy and fine until I encounter code that is a linq statement that attempts to query the database. My Linq statement is:
Dim l_ListOfPwrCycleCrashEvents As List(Of pwr_cycle_crash_events) = (From item In m_AnalyticsEntities.pwr_cycle_crash_events Where item.serialnumber = "0123445678" Select item).ToList
I have the statement in a try/catch block, but visual studio still reports the following:
Exception thrown:'System.Net.Sockets.SocketException' in System.dll Additional
information: A non-blocking socket operation could not be completed
immediately occurred
I cannot seem to figure out why this statement fails. I am able to use similar statements against a different EntityFramework (MS SQL Server) that is also configured in the application.
The complete method that contains the linq statement:
Public ReadOnly Property iCountOfPwrCycleCrashEvents(
ByVal a_sSerialNumber As String
) As Integer Implements IAnalytics.iCountOfPwrCycleCrashEvents
Get
Try
Dim l_ListOfPwrCycleCrashEvents As List(Of pwr_cycle_crash_events) = (From item In m_AnalyticsEntities.pwr_cycle_crash_events
Where item.serialnumber = a_sSerialNumber
Select item).ToList
If (l_ListOfPwrCycleCrashEvents IsNot Nothing) Then Return l_ListOfPwrCycleCrashEvents.Count
Catch l_Exception2 As System.Net.Sockets.SocketException
Dim askjfhakjh As Integer = 7
Catch l_Exception As Exception
Dim kjhadkjh As Integer = 1
End Try
Return 0
End Get
End Property
I am using Npgsql v4.1.1 and EntityFramework6.Npgsql v6.3.0 in an application that targets .NET Framework 4.5.1.
I can't seem to figure out why the linq statement throws this exception or how to solve the problem. What suggestions do you have?
I figured out the issue. I was using 4.5.1 framework because I thought I had a dependency that would not allow me to move to 4.5.2. I went to Package Manager Console and ran the following command:
Update-Package -ProjectName myProjectName -reinstall
By doing so, I found that I had a package that was needed but could not be loaded because it required the 4.5.2 framework (or higher). I changed the framework of the app to 4.5.2 and issued the above Package Manager command and it executed without errors. I ran the app and the linq statement no longer throws an exception.
I am converting a FeathersJS system from MySQL to Postgres and facing some problems.
After changing the connection string
"mysql": "mysql://user:password#server:port/database"
to
"postgres": "postgres://user:password#server:port/database"
at config/default.json, I changed the dialect from mysql to pg at feathers/sequelize.js.
But when I started with npm run dev I got the following JSON error message, never seen before.
{
"_bitField":18087936,
"_fulfillmentHandler0":{
"name":"SequelizeConnectionError",
"parent":{
"name":"error",
"length":93,
"severity":"FATAL",
"code":"3D000",
"file":"postinit.c",
"line":"855",
"routine":"InitPostgres"
},
"original":{
"name":"error",
"length":93,
"severity":"FATAL",
"code":"3D000",
"file":"postinit.c",
"line":"855",
"routine":"InitPostgres"
}
},
"name":"SequelizeConnectionError",
"parent":{
"name":"error",
"length":93,
"severity":"FATAL",
"code":"3D000",
"file":"postinit.c",
"line":"855",
"routine":"InitPostgres"
},
"original":{
"name":"error",
"length":93,
"severity":"FATAL",
"code":"3D000",
"file":"postinit.c",
"line":"855",
"routine":"InitPostgres"
}
}
After researching a bit with no success, here I am to ask if someone has ever seen this message.
I already tried the dialect as pg and postgres at feathers/sequelize.js, just to check if it would make any difference, but it didn't.
A true beginner error! My fault!
When I created the Postgres (Docker) container, I forgot to create the database itself!
I created the role and gave it the needed permissions, but forgot to create the database corresponding to my connection string.
The Postgres error code mentioned in my question (3D000) corresponds to invalid_catalog_name, i.e., no database corresponding to the connection string.
One may easily check this at Postgres documentation, but I was mistakenly looking for this error code at FeathersJS documentation.
I'm writing a web service in Swift using Vapor 3. I'm using FluentPostgreSQL for data persistence. I have a user model which conforms to both PostgreSQLModel, PostgreSQLMigration. The app builds correctly. However, when I run the app, I am getting the following error.
Fatal error: Error raised at top level: ⚠️ PostgreSQL Error: database "trialService" does not exist
- id: PostgreSQLError.server.fatal.InitPostgres
This is how my configure.swift looks like.
try services.register(FluentPostgreSQLProvider())
let configPSQL = PostgreSQLDatabaseConfig(hostname: "localhost", username: "imthath", database: "trialService")
let psql = PostgreSQLDatabase(config: configPSQL)
var databases = DatabasesConfig()
databases.add(database: sqlite, as: .sqlite)
databases.add(database: psql, as: .psql)
services.register(databases)
As you can see I was earlier using SQLite and now I am trying to use PostgreSQL for some models including User. I did not get any error when I was only SQLite.
You need to create the database from the terminal before your Vapor app can connect to it:
createdb trialService
I'm using SQLProvider to connect to my (local) PostgreSQL database in F#.
I've started with this code from fsprojects:
open FSharp.Data.Sql
open Npgsql
let [<Literal>] ResolutionPath =
__SOURCE_DIRECTORY__ + #"/../../packages/Npgsql/lib/net451/"
[<Literal>]
let connectionString = "Host=localhost;Port=5432;User ID=test;Password=test;Database=testdb;"
type PostgreSQL =
SqlDataProvider<
Common.DatabaseProviderTypes.POSTGRESQL,
ConnectionString = connectionString,
ResolutionPath = ResolutionPath,
IndividualsAmount = 1000,
UseOptionTypes = true>
When I'm trying to compile it I get this error message:
(path)/Database.fs(60,9): error FS3033: The type provider 'FSharp.Data.Sql.SqlTypeProvider' reported an error: Could not create the connection, most likely this means that the connectionString is wrong. See error from Npgsql to troubleshoot: The type initializer for 'Npgsql.Counters' threw an exception.
(path)/Database.fs(60,9): error FS3033: The type provider 'FSharp.Data.Sql.SqlTypeProvider' reported an error: Could not create the connection, most likely this means that the connectionString is wrong. See error from Npgsql to troubleshoot: The type initializer for 'Npgsql.Counters' threw an exception.
I've checked that user id and password and everything in connection string is correct.
I actually don't have any idea how to debug this issue.
Do you know what could be wrong?
Does it work for you without any issues?
I'm using macOS 10.12.
And lastly, in case I won't be able to fix this, are there any other methods that you would recommend for connecting to postgreSQL (with type providers)?
The error message clearly says that an exception was thrown from the type initializer for Npgsql.Counters - this is Npgsql 3.2's new support for Windows performance counters.
Unfortunately it seems that there are several issues with performance counters in various scenario (see #1447 and #1435). Because of this, version 3.2.2 (to be released this week) won't make use of them by default.
Can you please confirm that you're using 3.2.1 (and not 3.2.0), because a partial fix was introduced? If you're using 3.2.1 and getting this exception, you'll have to wait a few days for 3.2.0, and can use 3.1.10 in the meantime where the exception won't be thrown.
I've installed propel bundle for symfony2.
my database configuration is:
propel:
dbal:
driver: pgsql
user: postgres
password: postgres
dsn: pgsql:host=localhost;port=5432;dbname=test_database
options: {}
attributes: {}
When i wan to create this database from console (console propel: database:create) i have got strange error : Unable to open PDO connection [wrapped: SQLSTATE[08006] [7] FATAL: database "pgsql" does not exist.
i created pgsql database on my localhost and everything was good. Database "test_database" was succesfull created. Can somebody explain me why i got this previous error? On mysql i've created database without any problems.
This issue was a bug in the PropelBundle, it has been fixed by the following commit (even if the commit message is about MySQL, it fixes other RDBMS): https://github.com/propelorm/PropelBundle/commit/b4475d27fb1eb846d10cc2d2e2bd164f037508e3
I 've installed new PropelBundle via Composer and everything is ok now. I think maybe it was a problem with 1.0 bundle , now I have 1.1