FIX:
1. Close all instances of Visual Studio 2013
2. Delete this folder
in the registry (just “TokenStorage” – nothing else):
HKEY_CURRENT_USER\Software\Microsoft\VSCommon\12.0\ClientServices\TokenStorage
VS2013无法链接到TFS(Services),错误TF31002
原文：http://www.cnblogs.com/CuteNet/p/3556276.html