Can't inherit from IdentityUser and IdentityRole in ASP.NET Core 2.0

Question

I\'m trying to finish updating to .NET Core 2.0 but a couple of errors pop up:

The problem:

I have two classes, ApplicationRole and ApplicationU

Answer 1

This happen to me but I was using Asp.net Core with traditional .NET Framework. You need to add the Nuget package Microsoft.Extensions.Identity. That contains the classes IdentityUser and IdentityRole.

I think the reason you have to add this is when your project isn't using the Microsoft.AspNetCore.All package.