Team Foundation Service build fails on NuGet package restore

Question

I\'m having kind of an odd problem with my Team Foundation Service build. I queue it up and it starts just fine, but then it fails with the following error:

Answer 1

I ran into this issue on a Web API project, but we use NAnt.

The resolution was to update the Microsoft BCL Build Components nuget package to the latest (1.0.21) and things build fine now.