NuGet Package restore failed for project Miscellaneous Files: Value cannot be null or an empty string. Parameter name: root. 0 0

Question

I have such error in vs 2012: NuGet Package restore failed for project Miscellaneous Files: Value cannot be null or an empty string. Parameter name: root. 0 0

I see

Answer 1

I fixed this issue after clicking the "Clear All Nuget Cache(s)"

Answer 2

I right clicked the solution and chose "Enable Nuget Package Restore". This fixed the problem.

This link from MSDN shows how:

http://blogs.msdn.com/b/dotnet/archive/2013/06/12/nuget-package-restore-issues.aspx

nuget visual-studio

Answer 3

A simple restart of Visual Studio should clear everything up. I had the same issue in VS2013 after upgrading Web API. It was not necessary to delete the .suo.

Answer 4

It did not work for me. I had to go to tools, extension manager... Uninstall NuGet Restart Visual Studio 2010 Download NuGet Reinstall it. Restart Visual Studio. Fixed it all!