Mac fir 安装 gem install fir-cli

1.在终端执行  gem install fir-cli

一直提示错误：    You don't have write permissions for the /Library/Ruby/Gems/2.3.0 directory.

把 gem install fir-cli  改为  sudo gem install  -n /usr/local/bin fir-cli

仅做笔记 ~