Enable-Migrations Exception calling “SetData” with “2” argument(s)

Question

I created a library based on .NET 4.6.2 version.
To the library, I\'ve added the EntityFramework version 6.1.3 package.
I created a model as follow

Answer 1

Edit: Simple fix (as stated above) -StartupProjectName YourEF6ProjectNameHere

When I had been using the wrong StartupProjectName I still got the error. That's when I was using the solution below:

My kludgy work-around is to unload the project that does not require EF migrations:

1. Unload the startup project (in my case an ASP.Net Core project). Right-click the project name and selecting Unload Project.
2. Run the needed migration commands in the Package Manager Console
3. Right-click the unloaded project and choose Reload Project
4. Right-click the same project and choose Set as StartUp Project.

Not fun.