After a long period of not touching .NET or C#, I wanted to dive back in.
I was interested in setting up some continuous testing.
I found this doc: https://docs.microsoft.com/aspnet/core/tutorials/dotnet-watch
Also, I had to include <RuntimeFrameworkVersion>2.0.6</RuntimeFrameworkVersion> in the csproj file for the tests.
run dotnet --info to match the appriopriate runtime version.