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