Git错误，fatal: The current branch master has no upstream branch. To push the current branch and set the remote as upstream

问题：当我执行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

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

复现

首先创建远程仓库，然后在本地

git init
git remote add origin https://username@xxx.com/xxx.git
git add .
git remote add origin
git push

然后报错

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）