Unable to Install Any Package in Visual Studio 2015

Question

I\'ve tried every package I could possibly find and none of them will install in my project. I\'ve installed every update listed in the Extensions and Updates list that wer

Answer 1

I am using Visual Studio 2015 Update 3 and I managed to reproduce this error (despite Update 3 allegedly containing a fix).

As suggested above, a reliable fix is to do the following... 1) Exit Visual Studio, 2) Delete the packages folder, 3) Restart VS.

But... if you don't want to immediately exit VS for some reason, I was still able to add/remove packages from all projects by choosing the 'Manage NuGet Packages for Solution' option, rather than the individual Project with the issue.