Detected package downgrade: Microsoft.NETCore.App from 2.1.3 to 2.1.0

Question

I try to update my .net solution from .NET Core 1.1 to .NET Core 2.1. I have several .NET Core and .NET standard projects inside, which reference each other and another NuGe

Answer 1

I just experienced this same issue after adding a reference to MySQL.Data.

The only solution was to explicitly define the version of the affected references in the .csproj file: