This issue is exactly as described in:
and
But, I actually just performed a Windows Defender full "System Refresh", and then a full reinstall of VS Enterprise 15.5.2, and had the issue, so then uninstalled, and did VS Installer InstallCleanup -f, and even after that yet one more full Repair ...
And still I was only able to fix it by eventually removing the NuGetFallbackFolder.
I thought I should post another issue because none of those extensive 'Repairs' actually fixed the problem!
@rrelyea probably should move to nuget/home?
I have the same problem. Workaround is run dotnet restore in the console.
@steevcoco what was the permanent resolution? I don't think running dotnet restore int the console is acceptable. Preferred behaviour is when you create a new project in Visual Studio and build, all dependencies should resolve.
@salmonz sorry: I actually closed the issue because I have not seen the problem again ...
My ACTUAL solution did require deleting the NuGetFallbackFolder. You THEN can do dotnet restore on some solution to rebuild that folder: I had to delete the folder to get it in working order again.
I closed the issue because it has just been sitting open ... Perhaps I should re-open it.