Unpacking objects：53%；hint: Updates were rejected because the tip of your current branch is behind

Unpacking objects: 53% (22/41) 一直进行不下去；还报一下以下错误：
git pull或push都不行，一直报错，后面强制更新git pull -f origin dev；这样执行过后就好了，直接用git pull 或 git push 都可以了。