a network error occurred while checking 'https://github.com/': operation timed out

Hosts文件添加以下代码

20.205.243.166 github.com
199.232.69.194 github.global.ssl.fastly.net

# Windows路径

C:\Windows\System32\drivers\etc\hosts

# Mac/Linux路径

/etc/hosts

添加后清理DNS缓存

# Windows
ipconfig /flushdns

# MacOS
sudo dscacheutil -flushcache
sudo killall -HUP mDNSResponder

# Linux
sudo systemd-resolve --flush-caches