A few friends and I are working on a project via GitHub. We are all sharing the same branch, which may or may not be a good idea.
I edited some of the code and committed
I had to download the command line tools and it allowed me to checkout the master branch there (Which also checked it out in VS). I then did a git pull which then brought up additional errors due to conflicts with the merge of the remote and local branches. Fixed the conflicts, committed, and then synced which solved this problem.
http://blogs.msdn.com/b/visualstudioalm/archive/2013/03/08/use-the-git-command-prompt-to-supplement-visual-studio.aspx