NuGet upgrade issue

Question

I have the version of NuGet that comes with MVC3 (1.0), but when I try to upgrade to the latest version (currently 1.4) it failes and I get this in the log file:

Answer 1

From NuGet page on VS Gallery website:

"Review current release notes/known issues on the NuGet Docs site, including details and solution for about a common upgrade failure (Visual Studio 2010 SP1 Hotfix available)"