git 报错Could not read from remote repository. Please make sure you have the correct access rights an_warning could not read git

最近在拉取github、gitlab中的项目时，git 报了这样的错误，错误很简单，但是也是常碰到的

Warning: Permanently added the RSA host key for IP address '13.250.177.223' to the list of known hosts.
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.

这个错误就是说没有访问权限或者不存在这个远程仓库，这时需要

生成秘钥文件

ssh-keygen -t rsa -b 4096 -C "your_email@example.com"

id_rsa
id_rsa.pub
known_hosts

打开id_rsa.pub

将公钥复制添加到对应的gitlab /github仓库中即可