Compiling 3.1 project referencing Microsoft.CodeAnalysis.CSharp fails on latest MacOS

[georgiosd]

Version Used:

Microsoft.CodeAnalysis.CSharp 3.6.0

Steps to Reproduce:

On latest MacOS with dotnet core 3.1.5, a 3.1 project referencing <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.6.0" /> fails

Expected Behavior:

Project compiles

Actual Behavior:

/Users/georgiosd/Documents/studoyo/api/xxxx.csproj : error NU1102: Unable to find package Microsoft.CodeAnalysis.CSharp with version (>= 3.3.0)
/Users/georgiosd/Documents/studoyo/api/xxxx.csproj : error NU1102:   - Found 62 version(s) in nuget.org [ Nearest version: 3.0.0 ]
/Users/georgiosd/Documents/studoyo/api/xxxx.csproj : error NU1102: Unable to find package Microsoft.CodeAnalysis.Common with version (>= 3.3.0)
/Users/georgiosd/Documents/studoyo/api/xxx.csproj : error NU1102:   - Found 62 version(s) in nuget.org [ Nearest version: 3.0.0 ]
    0 Warning(s)
    2 Error(s)

[jaredpar]

Moving to sdk repo. This is a published package on NuGet.org hence not a roslyn specific issue. Possible this is a NuGet issue but given it's a Mac specific bug wanted to start with SDK.

[georgiosd]

Thanks @jaredpar - anything else I can do to help?

[georgiosd]

So when adding the Microsoft.CodeAnalysis.CSharp package I noticed it then complains about Microsoft.CodeAnalysis.Common package. Then I tried installing that instead and I think the last line is telling:

error: Package 'Microsoft.CodeAnalysis.Common' is incompatible with 'all' frameworks in project

Also adding Microsoft.CodeAnalysis.Common on a fresh 3.1 project adds 3.0.0.