git提交错误 error: failed to push some refs to

git上传本地代码到git上面，执行git push origin master命令报错：

error: failed to push some refs to 'https://gitee.com/demo.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Integrate the remote changes (e.g.
hint: 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

执行 git push --force 命令解决报错

 git push --force https://gitee.com/demo.git