git clone ssh方式报错提示无权限

git clone ssh方式报错

提示无权限：

Please make sure you have the correct access rights and the repository exists.

重新配置公钥，仍然无效，用 ssh -vvv git@github.com 测试ssh

发现报错，提示信息为

The authenticity of host 'github.com (20.205.243.166)' can't be established.
ECDSA key fingerprint is SHA256:...
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes

输入yes 问题解决

问题原因：

少了一个known_hosts文件，本来密钥文件应该是三个，现在是两个，就会报这样的错误，此时选择yes回车之后，即可，同时生成缺少的known_hosts文件