小编Mil*_*mic的帖子

我从我的项目中检出特定提交并从那里继续，希望该提交之后的更改将被删除，并且我检出的那个提交将是新的头。我提交了新的更改，但我无法推动它们。我还是 git 的新手。

我所做的是：

1. git checkout commit_hash
2. 编辑项目
3. git commit -m "新变化"
4. git push -u origin master

我有：

To https://github.com/myusername/project.git
 ! [rejected]        master -> master (fetch first)
error: failed to push some refs to 'https://github.com/miloradsimic/ISA16.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing …