I\'ve tried going to the URL listed for the official package source with my browser and I only get a
I was experiencing the same error in VS 2010. However, the accepted answer by Rick Liddle wasn't working for me. The strange thing is that I could get a list of available packages from the Package Manager Console no problem, so it still wasn't a connectivity issue.
Finally I realized that a newer version of NuGet was available, so I installed it, and it worked! Here are the steps:
That's it. As an aside, I noticed that the URI of the NuGet Official Package Source has changed to https://nuget.org/api/v2/ .