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Mac 下 ruby 升级

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当时我要安装android-platform-tools brew install android-platform-tools，然后这玩意就开始更新，看来我确实很久没用homebrew装软件了。

Updating Homebrew...
==> Downloading https://homebrew.bintray.com/bottles-portable/portable-ruby-2.3.3.leopard_64.bottle.1.tar.gz

然后蹦出来个这

/usr/local/Homebrew/Library/Homebrew/brew.rb:12:in `<main>': Homebrew must be run under Ruby 2.3! You're running 2.0.0. (RuntimeError)

用rvm来管理ruby版本，所以先把rvm安装一下，简单3步 (1)curl -L get.rvm.io | bash -s stable (2)source ~/.profile (3)source ~/.bash

折腾完看看版本号 rvm -v

rvm 1.29.3 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io]

装完rvm，就可以更新ruby了

可以用rvm list known查看一下已发布的版本，我这里安装2.3.4版本

rvm install 2.3.4

ruby -v

ruby 2.3.4p301 (2017-03-30 revision 58214) [x86_64-darwin15]

更新完ruby，再来试试homebrew～

brew cask install android-platform-tools
adb devices
List of devices attached
1164111025	unauthorized

其实我一开始就为了装个黑域，从安装adb到更新homebrew、再到更新ruby，我在瞎折腾的路上无法自拔。。。

Game Over！

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