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在提交代码到git时候，遇到了这个问题。
首先在github创建了一个远程仓库 myMaven,然后关联远程仓库
git remote add origin [email protected]:*****/myMaven.git
然后添加到本地仓库
git add .提交
git commit -m "1"push
git push -u origin master
报错啦！
! [rejected] master -> master (fetch first)
error: failed to push some refs to '[email protected]:*********/myMaven.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.
仔细读了提示后，明白了原来远程包含有你本地没有的工作（ remote contains work that you do not have locally）。其实仔细想一下，我是在远程创建的仓库，仓库是空的，为什么会有我本地没有的工作呢？
原因很简单，readme文件！你在创建仓库的时候选择了创建readme文件。所以本地是没有的，因此，你需要在push之前整合远程的改变（integrate the remote changes before pushing again.）
解决办法：按照例子提示，git pull 命令，在百度后，找到了这个
git pull --rebase origin master然后push一次，就ok啦
git push -u origin master