- 更新了系统，安装
Homebrew老失败，报错：fatal: unable to access 'https://github.com/Homebrew/brew/': - 解决方案，执行下面两行命令：
$ git config --global --unset http.proxy $ git config --global --unset https.proxy
fatal: unable to access 'https://github.com/Homebrew/brew/': LibreSSL SSL_read: error:02FFF03C:system library:func(4095):Operation timed out, errno 60 Failed during: git fetch --force --tags origin
