When trying to install a package from our newly created private Nuget Feed i get the following error.
Could not install package \'GC.Timecode 1.0.0.3\'. You are tryi
I think solution may vary from case to case, however, in my case, NuGet package was built/compiled in "Class Library .NET Core 3.1" whilst the project which were using this package belonged to .NET Framework. I just changed the project type to .NET Core 3.1 and added NuGet package again and it worked for me.