我通过Github重新认证解决了这个问题。

如果你有Github CLI，你可以输入gh auth登录

我也有同样的问题。试试下面的方法: 1. 修改密钥链访问在Mac的git凭证解决了我的问题。 2. 重置原始url

git remote rm origin
git remote add origin git@github.com:account-name/repo-name.git

这也可能发生，因为GitHub本身宕机了。一定要检查stat.github.com，看看问题是否在他们那边。

2018年10月22日，你有好几个小时都无法推送到GitHub。

如果你在Windows上使用Git，试着清除你的凭证:

找到“凭据管理器”(应该在控制面板中) 删除所有与GitHub相关的凭证

这解决了我的问题。

   git pull https://myusername:mypassword@github.com/path_to/myRepo.git

Normally it happens because the project is private and you have not rights to write it. I had the same "problem" a few times, and it was for that reason. If the project it is yours, just create a private and a public key following this link: https://docs.github.com/en/github/authenticating-to-github/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent and add them to the "SSH and Key" section on gitHub, then you will be able to push to the repo. In the other hand if the project it is not your, ask the owner to give you the rights for it.