我的一个Github库也有同样的问题。

方法:

使用SSH而不是HTTPS，然后推/拉开始工作正常。

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

如果你的repo之前工作正常，突然弹出这个错误，最有可能的原因是你的git被认证为其他用户，没有访问存储库的权限。因此，为了进行推送，您所需要做的就是在git命令中指定正确的用户名和密码。所以，一个github回购的推命令看起来像:

git push https://youruser:password@github.com/user/reponame.git

用户名和密码需要进行url转义，因此@应该被%40取代，等等。

为了解决这个问题(在Linux上)，我只需要运行这个:

git config --global --unset credential.helper

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.

在执行此操作之前，请确保您拥有对回购的写权限。如果您仍然得到错误，请执行以下操作:

Generate a personal access token from your account from Settings > Developer Settings > Personal Access tokens. Keep the token safe somewhere. Go to your repository and run the following: git remote rm origin Then add a new origin along with your username: git remote add origin https://USERNAME@github.com/REPOSITORY_LINK.git Now when you push the code, a prompt will show up asking for your password or personal access token. Paste the token that we generated in the first step in the field, and we're done.