Describes the cause and action for error messages.
Error Message(English)：
cannot connect to github via ssh
cannot connect to github via ssh - Stack Overflow
https://stackoverflow.com/questions/31717506/cannot-connect-to-github-via-ssh
git - Github (SSH) via public WIFI, port 22 blocked - Stack Overflow
https://stackoverflow.com/questions/7953806/github-ssh-via-public-wifi-port-22-blocked/8081292
Warn about invalid extras during locking ・ Issue #3343 ・ pypa ... - GitHub
https://github.com/pypa/pipenv/issues/3343
platformsh-docs/submodules.md at master ・ platformsh ... - GitHub
https://github.com/platformsh/platformsh-docs/blob/master/src/development/submodules.md
wireless networking - GitHub SSH connection hangs - Super User
https://superuser.com/questions/1211273/github-ssh-connection-hangs
wireless networking - GitHub SSH connection hangs - Super User
https://superuser.com/questions/1211273/github-ssh-connection-hangs?noredirect=1&lq=1
wireless networking - GitHub SSH connection hangs - Super User
https://superuser.com/a/1216734
Newest 'git' Questions - Page 7 - Super User
https://superuser.com/questions/tagged/git?page=7&sort=newest