我正在尝试克隆一个heroku应用程序，但不断收到错误：
! Your key with fingerprint XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX is not authorized to access <APP NAME>.
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
我试图按照此处的解决方案https://stackoverflow.com/a/9149518/79465，但没有任何帮助。
任何想法我可能做错了什么？