'Fragment' does not have an implementation exception when trying to add migration with EF Core 7

Question

When I'm trying to add a migration using EF Core (7.0.0-rc.1.22426.7) I'm greeted with the following error in the console:

System.TypeLoadException: Method 'Fragment' in type 'Microsoft.EntityFrameworkCore.Design.Internal.CSharpHelper' from assembly 'Microsoft.EntityFrameworkCore.Design, Version=6.0.8.0, Culture=neutral, PublicKeyToken=adb9793829ddae60' does not have an implementation.
   at Microsoft.EntityFrameworkCore.Design.DesignTimeServiceCollectionExtensions.<>c__DisplayClass0_0.<AddEntityFrameworkDesignTimeServices>b__0(ServiceCollectionMap services)
   at Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder.TryAddProviderSpecificServices(Action`1 serviceMap)
   at Microsoft.EntityFrameworkCore.Design.DesignTimeServiceCollectionExtensions.AddEntityFrameworkDesignTimeServices(IServiceCollection services, IOperationReporter reporter, Func`1 applicationServiceProviderAccessor)
   at Microsoft.EntityFrameworkCore.Design.Internal.DesignTimeServicesBuilder.CreateServiceCollection(DbContext context)
   at Microsoft.EntityFrameworkCore.Design.Internal.DesignTimeServicesBuilder.Build(DbContext context)
   at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.AddMigration(String name, String outputDir, String contextType, String namespace)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigrationImpl(String name, String outputDir, String contextType, String namespace)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.AddMigration.<>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)
Method 'Fragment' in type 'Microsoft.EntityFrameworkCore.Design.Internal.CSharpHelper' from assembly 'Microsoft.EntityFrameworkCore.Design, Version=6.0.8.0, Culture=neutral, PublicKeyToken=adb9793829ddae60' does not have an implementation.

Has anyone encountered this before and know what to do about it? Migrations worked up until today and I don't think I've been adding very exotic things to my code base. Any pointers in the right direction are helpful since Google didn't really clarify anything yet...

Answer 1

Installing Microsoft.EntityFrameworkCore.Design solved the problem for me