解决错误Access denied. The provided password or token is incorrect or your account has 2FA enabled

remote: HTTP Basic: Access denied. The provided password or token is incorrect or your account has 2FA enabled and you must use a personal access token instead of a password. See https://gitlab.com/help/topics/git/troubleshooting_git#error-on-git-fetch-http-basic-access-denied

fatal: Authentication failed

这个问题有几种可能

1. 密码输入错误

2. 输入对了密码，但是开启了2FA

3. 使用token登录时，username不能时空，无论如何需要输入一些字符。