brew install ruby error

问题：

Error: Failed to download resource "ruby"
Download failed: https://homebrew.bintray.com/bottles/ruby-2.7.1_2.catalina.bottle.tar.gz

解决办法：

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

重新安装

brew install ruby