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

visual-studio-2012 nuget nuget-package-restore
Midnight Guest picture Midnight Guest · Dec 31, 2013 · Viewed 80.4k times · Source

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 that it's a bug https://nuget.codeplex.com/workitem/3780 that was fixed for version 2.8 But I can't find the 2.8 version on https://nuget.codeplex.com Is it possible to fix the error without the installation of the 2.8 version? Or how to get the 2.8?

Answer

st78 picture st78 · Jan 24, 2014

I fixed this by deleting the visual studio solution user options file (.suo) and then restarting VS.

UPDATE: For VS 2017, you need to delete a hidden folder named .vs located in solution directory (Thanks @Tien Dinh!)

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