Could you add a Nuget Restore action? There’s an issue with build servers that makes this needed:
http://stackoverflow.com/questions/18989661/team-foundation-service-build-fails-on-nuget-package-restore
On the todo list, I’ll bump it up the list.
Thanks Vincent.
For now I use this method to restore packages:
http://geertvanhorrik.com/2014/02/06/faster-restore-nuget-packages/