An unhandled exception occurred while processing the request.

InvalidOperationException: Cannot create a DbSet for 'IdentityUserClaim<string>' because this type is not included in the model for the context.

Microsoft.EntityFrameworkCore.Internal.InternalDbSet<TEntity>.get_EntityType()

 

解决方法，Context继承identitycontext，不要自己实现集合，让他自动创建