brew Error: Could not create /usr/local/Cellar

【原文】：http://blog.anbig.com/2017/11/18/brew-error-could-not-create-usrlocalcellar/

mac 升级到10.13后无法使用brew安装软件

解决方法

sudo  mkdir /usr/local/Cellar

sudo chmod a+w /usr/local/Cellar

sudo  mkdir /usr/local/opt

sudo chmod a+w /usr/local/opt

然后再次安装就可以了。