git push的时候发生上述错误。
git push -u "resp" master
resp为git仓库的“地址”
reference中由解决方案
http://blog.csdn.net/qqb123456/article/details/25319659
reference：
http://*.com/questions/13030714/git-1-8-0-fatal-the-current-branch-master-has-multiple-upstream-branches-refu?utm_source=feweekly&utm_campaign=issue0&utm_medium=web