Your startup project doesn't reference Microsoft.EntityFrameworkCore.Design

Question

I have 2 projects in my solution, I have a project with Entity Framework Core installed:

And in the other ASP.NET Web API project I have these packages:

Answer 1

I found the solution here: http://obscureproblemsandgotchas.com/development/c/dotnet-core-ef-migration-not-working/

In short, edit your csproj file, and add to your PropertyGroup section following entry:

True