$ git push origin master ssh: Could not resolve hostname github.com: Name or service not known fatal: Could not read from remote repository.

如果你的网络环境不支持 SSH，可以尝试使用 HTTPS 推送代码。首先更改远程仓库 URL 为 HTTPS：

 

git remote set-url origin https://github.com/yourusername/yourrepository.git

然后重新尝试推送：

 

git push origin master