有时ssh凭证是安装在你的电脑上与github回购通信。 当你设置新的repo:如果你添加了https格式的origin，你的git凭证管理器不能找出repo。

检查产地格式

git remote -v

https格式的来源

origin  https://github.com/username/repo_name.git

ssh格式的原点

origin git@github.com:username/repo_name.git

删除https格式的origin

git remote remove origin

添加ssh格式的origin

git remote add origin git@github.com:username/repo_name.git

这里的问题是你的本地git无法将更改推送到远程 检查你的遥控器是否设置正确

git remote -v

如果没有正确设置，请尝试将您的遥控器设置为

git remote set-url origin https://username@github.com/MyRepo/project.git

然后尝试使用

git push -u origin master

也有可能你的本地git有不同的凭据，请检查一下。

如果你正在使用Git桌面应用程序，那么你应该尝试从Git桌面应用程序中推和拉，而不是终端。它会帮助你的。

I was trying to clone a repo and was facing this issue, I tried removing all git related credentials from windows credentials manager after that while trying to clone git was asking me for my credentials and failing with error invalid username or password. This was happening because the repo I was trying to clone was under an organization on github and that organization had two factor auth enabled and git bash probably do not know how to handle 2fa. So I generated a token from https://github.com/settings/tokens and used the github token instead of password while trying to clone the repo and that worked.

确保您拥有正确的访问权限，当分支受到保护时可能会发生这种情况。

我刚刚浪费了四个小时在这上面。

我有同样的问题，并发现我在~/中有另一个密钥文件。ssh到不同的GitHub存储库。不知怎么的，它代替了新的。