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

Solved.

The package that was keeping those classes Microsoft.AspNetCore.Identity.EntityFrameworkCore changed. To access those clases (IdentityUser and IdentityRole) one must add

using Microsoft.AspNetCore.Identity;

With this, the problem is gone.