git异常——fatal: The current branch master has no upstream branch. To push the current branch and set the remote as upstream

问题：当执行git push命令的时候，报错如下：
fatal: The current branch master has no upstream branch.
To push the current branch and set the remote as upstream

原因当前分支主服务器没有上游分支，推送当前分支并将远程服务器设置为上游

解决办法
git pull
git push --set-upstream origin master（master可以根据你的需要自定义，就是当前分支在远程分支对应的名称）