我正在尝试在git commit之后推送项目，但遇到错误：
git push
sign_and_send_pubkey: signing failed for RSA "/home/acer/.ssh/id_rsa" from agent: agent refused operation
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
已接线，因为我之前在同一项目上进行了其他更改，并且此错误仅在此一个项目中存在！！！