【GitHub】You do not have write access to xxxx

checking your permissions
check your SSH access
Check that the repository really exists

参考资料 & 鸣谢
Github - no write access to team's repo in organisation

git@github.com: Permission denied (publickey).
$ ssh -T git@github.com
> git@github.com: Permission denied (publickey)

1. git config --global --list // 验证邮箱与GitHub的注册邮箱是否一致
2. git config --global user.name xxxx // 设置全局用户名
3. git config --global user.email xxx // 设置邮箱
4. ssh-keygen -t rsa -C '这里换上你的邮箱' // 一路回车，存储.ssh文件
5. github - settings - SSH and GPG keys - New SSH key
6. id_rsa.hub 的内容复制到 key 中
7. ssh -T git@github.com // 测试通不通
8. ssh-agent -s // 不通的话，执行8,9两步
9. ssh-add ~/.ssh/id_rsa

参考资料 & 鸣谢
https://blog.csdn.net/qq_43768946/article/details/90411154

github desktop error “The repository does not seem to exist anymore. You may not have access, or it may have been deleted or renamed.”
This error was keeps on occurring to me. Turn out I was not added as the Contributor on the GitHub project.
The repo owner should be able to see and list of Contributor for the project. You can request him to add you in contributor list and this error will disappear.

参考资料 & 鸣谢
The repository does not seem to exist anymore. You may not have access, or it may have been deleted or renamed.