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
In general closing and re-open VS 2015 fixed most problems I have ran across. Once I did need to run a repair on one of my computers.
However I was about to do this Closing and re-opening VS2015 resolved the issue for me
I figured that I would instead right click on the project and Unload Project then right click and Reload project THEN Manage Nuget worked!