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C#

Posted by Aurelio Decock
Aurelio Decock
14,607 Points

.NET Core migration issue

Hello

I'm currently creating a webapp and I tried to clone the project into my desktop computer. But once I try to add migrations to prepare my DB I get the following error:

''' System.InvalidOperationException: The current CSharpMigrationOperationGenerator cannot scaffold operations of type 'Microsoft.EntityFrameworkCore.Migrations.Operations.NpgsqlCreatePostgresExtensionOperation'. Configure your services to use one that can. at Microsoft.EntityFrameworkCore.Migrations.Design.CSharpMigrationOperationGenerator.Generate(MigrationOperation operation, IndentedStringBuilder builder) at CallSite.Target(Closure , CallSite , CSharpMigrationOperationGenerator , Object , IndentedStringBuilder ) at Microsoft.EntityFrameworkCore.Migrations.Design.CSharpMigrationOperationGenerator.Generate(String builderName, IReadOnlyList1 operations, IndentedStringBuilder builder) at Microsoft.EntityFrameworkCore.Migrations.Design.CSharpMigrationsGenerator.GenerateMigration(String migrationNamespace, String migrationName, IReadOnlyList1 upOperations, IReadOnlyList1 downOperations) at Microsoft.EntityFrameworkCore.Migrations.Design.MigrationsScaffolder.ScaffoldMigration(String migrationName, String rootNamespace, String subNamespace) at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration(String name, String outputDir, String contextType) at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl(String name, String outputDir, String contextType) at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_01.<Execute>b__0() at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action) The current CSharpMigrationOperationGenerator cannot scaffold operations of type 'Microsoft.EntityFrameworkCore.Migrations.Operations.NpgsqlCreatePostgresExtensionOperation'. Configure your services to use one that can. '''

Does anyone have an idea how to fix this? I'm using postgres (npgsql) since this is a school project and it was recommended by our lecturer.

Thank you in advance!

1 Answer

Aurelio Decock
Aurelio Decock
14,607 Points
Aurelio Decock
Aurelio Decock
14,607 Points

I solved it by re-pulling the project. Something probably went missing while pulling the project before :)