本文介绍 git 常见报错，记录自己遇到的报错的同时，指引可能也遇到同样问题的读者

Permission denied

情况 1

问题描述:

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git clone git@github.com:***.git

Cloning into '***'...
The authenticity of host 'github.com (20.205.243.166)' can't be established.
ECDSA key fingerprint is SHA256:p2QAMXNIC1TJYWeIOttrVc98/R1BUFWu3/LiyKgUfQM.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'github.com,20.205.243.166' (ECDSA) 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.

问题原因: clone 了别人的仓库，用的 git 链接

解决方法：改用 http 链接即可

情况 2

问题描述

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git push orgin master

 ! [remote rejected] master -> master (permission denied)
error: failed to push some refs to 'git@github.com:ericjuice/overlaySR.git'

问题原因: push 错仓库了或者没有设置 ssh. 我这里是前者，由于我同一台机器存在 2 个不同的 github 账号的不同的 ssh key, push 的时候 push 错了仓库

解决方法：修改 push 的 URL, 或者修改 ssh 设置，让 git 寻找到正确的仓库即可

Connection refused

问题描述 1:

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git clone https://github.com/***.git

Cloning into '***'...
fatal: unable to access 'https://github.com/***.git/': Failed to connect to 127.0.0.1 port 15777: Connection refused

问题原因：这是在本地出的错，应该是权限问题

解决方法：加个 sudo 即可

Connection reset

问题描述:

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git push  origin master

kex_exchange_identification: read: Connection reset by peer
fatal: Could not read from remote repository.

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

问题原因: ssh key 错误或者 url 填错或者是自己网络问题

解决方法：手动更新一下本地和 github 上的 ssh key， 或者把科学上网换一下试试