An existing OAuth token for Composer is present and will be reused

Could not fetch https://api.github.com/authorizations, enter your GitHub credentials to go over the API rate limit
The credentials will be swapped for an OAuth token stored in /Users/yuanchao/.composer/auth.json, your password will not be stored
To revoke access to this token you can visit https://github.com/settings/applications
Username: 我输入了账号
Password: 我输入了密码
An existing OAuth token for Composer is present and will be reused

求解救