git推送报错 Your branch is ahead of 'origin/master' by 1 commit

当出现no changes added to commit (use “git add” and/or “git commit -a”)

git commit之后，用git status，打印信息为：

Your branch is ahead of ‘origin/master’ by 1 commit.

说明没有文件需要commit，但是本地仓库 有一个commit ahead原来的master，就是本地仓库有一个提交，比远程仓库要先进一个commit。git push origin master之后，再用git staus，打印信息为：
On branch master
nothing to commit (working directory clean)
敲
此报错意思为git不知道您当前提交的版本
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git push origin master