Entity Framework common error - no such table: __EFMigrationsHistory + ConnectionString property has not been initialized + certificate chain was issued by an authority that is not trusted

Today, I'm going to discuss about few common errors developer face while executing migration using Entity Famework. For example one common error is SQLite Error 1: 'no such table: __EFMigrationsHistory'. This is kind of limtation of SQL Lite to work with memory management.

Below the error infomation.

Failed executing DbCommand (3ms) [Parameters=[], CommandType='Text', CommandTimeout='30']

INSERT INTO "__EFMigrationsHistory" ("MigrationId", "ProductVersion")

Microsoft.Data.Sqlite.SqliteException (0x80004005): SQLite Error 1: 'no such table: __EFMigrationsHistory'.

   at Microsoft.Data.Sqlite.SqliteException.ThrowExceptionForRC(Int32 rc, sqlite3 db)

   at Microsoft.Data.Sqlite.SqliteCommand.PrepareAndEnumerateStatements(Stopwatch timer)+MoveNext()

   at Microsoft.Data.Sqlite.SqliteCommand.GetStatements(Stopwatch timer)+MoveNext()

   at Microsoft.Data.Sqlite.SqliteDataReader.NextResult()

   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteReader(CommandBehavior behavior)

   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteReader()

   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteNonQuery()

   at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteNonQuery(RelationalCommandParameterObject parameterObject)        

   at Microsoft.EntityFrameworkCore.Migrations.MigrationCommand.ExecuteNonQuery(IRelationalConnection connection, IReadOnlyDictionary`2 parameterValues)

   at Microsoft.EntityFrameworkCore.Migrations.Internal.MigrationCommandExecutor.ExecuteNonQuery(IEnumerable`1 migrationCommands, IRelationalConnection connection)

   at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate(String targetMigration)

   at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.UpdateDatabase(String targetMigration, String connectionString, String contextType)

   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabaseImpl(String targetMigration, String connectionString, String contextType)

   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabase.<>c__DisplayClass0_0.<.ctor>b__0()

   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)

SQLite Error 1: 'no such table: __EFMigrationsHistory'.


Solution:

The best approchh would be switch to other provider like SQl Server. Instead of having SQL Lite connection, get SQL server (or Oracle, PostGress whatever other DB you have) connection string.

 "ConnectionStrings": {

    "DefaultConnection": "data source=<Windows\\MSSQLSERVER NAME>;initial catalog=<DB Name>;integrated security=True;TrustServerCertificate=True;MultipleActiveResultSets=True"
  },


Another type of error: The ConnectionString property has not been initialized.

The above one is a kind of silly error. In my opinion this is a kind of limitaion or EF. EF unable to read your connection string because of typo issues ConnectionStrings

Error:

at Microsoft.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection)

   at Microsoft.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)

   at Microsoft.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)

   at Microsoft.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry, SqlConnectionOverrides overrides)

   at Microsoft.Data.SqlClient.SqlConnection.Open(SqlConnectionOverrides overrides)

   at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerConnection.OpenDbConnection(Boolean errorsExpected)

   at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternal(Boolean errorsExpected)

   at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.Open(Boolean errorsExpected)

   at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerDatabaseCreator.<>c__DisplayClass18_0.<Exists>b__0(DateTime giveUp)

   at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.<>c__DisplayClass12_0`2.<Execute>b__0(DbContext _, TState s)

   at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](TState state, Func`3 operation, Func`3 verifySucceeded)

   at Microsoft.EntityFrameworkCore.ExecutionStrategyExtensions.Execute[TState,TResult](IExecutionStrategy strategy, TState state, Func`2 operation, Func`2 verifySucceeded)

   at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerDatabaseCreator.Exists(Boolean retryOnNotExists)

   at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerDatabaseCreator.Exists()

   at Microsoft.EntityFrameworkCore.Migrations.HistoryRepository.Exists()

   at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate(String targetMigration)

   at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.UpdateDatabase(String targetMigration, String connectionString, String contextType)

   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabaseImpl(String targetMigration, String connectionString, String contextType)

   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabase.<>c__DisplayClass0_0.<.ctor>b__0()

   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)

The ConnectionString property has not been initialized.


Solution: Ensure to write correct spelling like below i.e. with S.

"ConnectionStrings": {
    "DefaultConnection":

Alternately if your connection like below: 

"MeraSecureConnStr": {

    "DevConnection":

Then you need to call method like below:

builder.Services.AddDbContext<DataContext>(opt =>
{

opt.UseSqlServer(builder.Configuration.GetConnectionString("MeraSecureConnStr:DevConnection"));

}
);


Another final error and it is simple - The certificate chain was issued by an authority that is not trusted

Error:

at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabase.<>c__DisplayClass0_0.<.ctor>b__0() at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action) ClientConnectionId:9f7d136b-73db-4d06-bd49-1cce7a238b53 Error Number:-2146893019,State:0,Class:20 A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)


Solution: Add TrustServerCertificate=True; in connection string.


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