'System.ValueTuple, Version=0.0.0.0 required for Add-Migration on .NET 4.6.1 Class Library

Question

I upgraded a .net standard class library from Entity Framework Core 1.1 to Entity Framework 2.0

I am trying to run Add-Migration on an Entity Framework Core Class Li

Answer 1

I had the same problem, and it got fixed after installing .NET 4.7.1 framework