git拉取失败问题

错误提示：

IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
SHA256:uNiVztksCsDhcc0u9e8BujQXVUpKZIDTMczCvj3tD2s.
Please contact your system administrator.
Add correct host key in /c/Users/admin/.ssh/known_hosts to get rid of this message.
Offending RSA key in /c/Users/admin/.ssh/known_hosts:4
Host key for github.com has changed and you have requested strict checking.
Host key verification failed.
fatal: Could not read from remote repository.

 

原因：SSH匹配不上，远端SSH和本地SSHkey不符

解决办法：

1、确保远程和本地key关系对应

2、清空~/.ssh/known文件，使其重新生成