Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

The Collation specified by Sql Server is not supported

See original GitHub issue

Error occurs when I try to execute this command:

dotnet ef dbcontext scaffold “Data Source=SALAMANDRA;Initial Catalog=PRE_PortalInvestigacion;Integrated Security=True” Microsoft.EntityFrameworkCore.SqlServer

Same error working with EF Power Tools from ErikEJ version 2.5.832.0

My current collation in database is Traditional_Spanish_CI_AI

Security Warning: The negotiated TLS 1.0 is an insecure protocol and is supported for backward compatibility only. The recommended protocol version is TLS 1.2 and later.
Microsoft.Data.SqlClient.SqlException (0x80131904): The Collation specified by SQL Server is not supported.
   at Microsoft.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SqlConnection.cs:line 1853
   at Microsoft.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SqlInternalConnection.cs:line 611
   at Microsoft.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/TdsParser.cs:line 1327
   at Microsoft.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/TdsParser.cs:line 2550
   at Microsoft.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/TdsParser.cs:line 1847
   at Microsoft.Data.SqlClient.TdsParser.DrainData(TdsParserStateObject stateObj) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/TdsParser.cs:line 4451
   at Microsoft.Data.SqlClient.TdsParser.ThrowUnsupportedCollationEncountered(TdsParserStateObject stateObj) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/TdsParser.cs:line 4467
   at Microsoft.Data.SqlClient.TdsParserStateObject.TryReadStringWithEncoding(Int32 length, Encoding encoding, Boolean isPlp, String& value) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/TdsParserStateObject.cs:line 1772
   at Microsoft.Data.SqlClient.TdsParser.TryReadSqlStringValue(SqlBuffer value, Byte type, Int32 length, Encoding encoding, Boolean isPlp, TdsParserStateObject stateObj) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/TdsParser.cs:line 5604
   at Microsoft.Data.SqlClient.TdsParser.TryReadSqlValue(SqlBuffer value, SqlMetaDataPriv md, Int32 length, TdsParserStateObject stateObj, SqlCommandColumnEncryptionSetting columnEncryptionOverride, String columnName) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/TdsParser.cs:line 6023
   at Microsoft.Data.SqlClient.SqlDataReader.TryReadColumnInternal(Int32 i, Boolean readHeaderOnly) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SqlDataReader.cs:line 3782
   at Microsoft.Data.SqlClient.SqlDataReader.TryReadColumn(Int32 i, Boolean setTimeout, Boolean allowPartiallyReadColumn) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SqlDataReader.cs:line 3626
   at Microsoft.Data.SqlClient.SqlDataReader.ReadColumn(Int32 i, Boolean setTimeout, Boolean allowPartiallyReadColumn) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SqlDataReader.cs:line 3607
   at Microsoft.Data.SqlClient.SqlDataReader.GetString(Int32 i) in /_/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SqlDataReader.cs:line 2618
   at Microsoft.EntityFrameworkCore.SqlServer.Scaffolding.Internal.SqlServerDatabaseModelFactory.GetTables(DbConnection connection, DatabaseModel databaseModel, Func`3 tableFilter, IReadOnlyDictionary`2 typeAliases, String databaseCollation)
   at Microsoft.EntityFrameworkCore.SqlServer.Scaffolding.Internal.SqlServerDatabaseModelFactory.Create(DbConnection connection, DatabaseModelFactoryOptions options)
   at Microsoft.EntityFrameworkCore.SqlServer.Scaffolding.Internal.SqlServerDatabaseModelFactory.Create(String connectionString, DatabaseModelFactoryOptions options)
   at Microsoft.EntityFrameworkCore.Scaffolding.Internal.ReverseEngineerScaffolder.ScaffoldModel(String connectionString, DatabaseModelFactoryOptions databaseOptions, ModelReverseEngineerOptions modelOptions, ModelCodeGenerationOptions codeOptions)
   at Microsoft.EntityFrameworkCore.Design.Internal.DatabaseOperations.ScaffoldContext(String provider, String connectionString, String outputDir, String outputContextDir, String dbContextClassName, IEnumerable`1 schemas, IEnumerable`1 tables, String modelNamespace, String contextNamespace, Boolean useDataAnnotations, Boolean overwriteFiles, Boolean useDatabaseNames, Boolean suppressOnConfiguring, Boolean noPluralize)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.ScaffoldContextImpl(String provider, String connectionString, String outputDir, String outputDbContextDir, String dbContextClassName, IEnumerable`1 schemaFilters, IEnumerable`1 tableFilters, String modelNamespace, String contextNamespace, Boolean useDataAnnotations, Boolean overwriteFiles, Boolean useDatabaseNames, Boolean suppressOnConfiguring, Boolean noPluarlize)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.ScaffoldContext.<>c__DisplayClass0_0.<.ctor>b__0()
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_0`1.<Execute>b__0()
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
ClientConnectionId:9e8afbbf-35c2-44f6-82e9-7daec17ec103

Include provider and version information

EF Core version: 6 Database provider: Microsoft.EntityFrameworkCore.SqlServer. in Sql Server 2012 Standard Target framework: (e.g. .NET 6.0) Operating system: Windows 10 IDE: Visual Studio 2022 17.0.1

Issue Analytics

State:
Created 2 years ago
Comments:9 (3 by maintainers)

Top GitHub Comments

1reaction

rojicommented, Feb 10, 2022

@JuanIrigoyen I can see that the 6.0.2 release should contain the fix in https://github.com/dotnet/runtime/pull/62155. Make sure that you’re using that version, and if the issue persists, please open a new issue on https://github.com/dotnet/runtime referencing https://github.com/dotnet/runtime/pull/62155 and containing a runnable code sample that shows the problem.

1reaction

rojicommented, Dec 29, 2021

@JuanIrigoyen unless I’m mistaken, the fix should be included in .NET 6.0.2 (though note that this has nothing to do EF Core - see dotnet/runtime#62155).