git问题解决方法error: failed to push some refs to

error: failed to push some refs to

To https://gitee.com/abo0527/a_taobao.git
 ! [rejected]        master -> master (fetch first)
error: failed to push some refs to 'https://gitee.com/abo0527/a_taobao.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 again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

错误原因：在推送前没有进行本地仓库和远程服务器的同步

解决方法：

1、强推，即利用强覆盖方式用你本地的代码替代git仓库内的内容，如果远程仓库是刚建的，没有代码，可以这样操作，尽量避免这种操作方法。

git push -f

2、先把git的东西fetch到你本地然后merge后再push

$ git fetch
$ git merge

3、在使用的时候，git merge，又出现了以下的问题

$ git merge
fatal: refusing to merge unrelated histories

对于这个问题。使用下面命令处理

git pull origin master --allow-unrelated-histories 

4、然后继续git merge,依然有问题

fatal: You have not concluded your merge (MERGE_HEAD exists).
Please, commit your changes before you merge.

这个就好处理了，是我们没有提交当前的变化， git add .,git commit -am “提交信息”
然后再来一次git merge,然后ok.
5、然后输入git pull,显示如下

Already up-to-date.

最后再进行推送

$git push origin master