执行Hexo提交命令后收到邮件：
The page build failed for the master branch with the following error:
Page build failed. For more information, see https://help.github.com/en/github/working-with-github-pages/troubleshooting-jekyll-build-errors-for-github-pages-sites#troubleshooting-build-errors.
For information on troubleshooting Jekyll see:
https://help.github.com/articles/troubleshooting-jekyll-builds
If you have any questions you can submit a request on the Contact GitHub page at https://support.github.com/contact?repo_id=202948434&page_build_id=191361275
解决办法：
删除博客文件夹（Hexo）中的.deploy_git文件夹
之后执行hexo clean && hexo g -d