Unable to restore / remove / update a NuGet package because the mentioned version is no longer available

Question

I\'m trying to give the SignalR Sample a test drive but it seems it references an old version of SignalR which is no longer available. The actual problem is that NuGet cannot re

Answer 1

In my case, I'd restarted visual studio. Then I'd removed nuget package entry from package.config.

After that I was able to restore the dependency.