1. I installed appium-1.5.3.dmg But when I click the stethoscope button the Appium is show error :
Xcode is installed at: /Library/Developer/CommandLineTools [Error: Could not detect Mac OS X Version from sw_vers output: ‘10.12 ‘]
解决方法：
https://stackoverflow.com/questions/40129794/how-to-fix-error-could-not-detect-mac-os-x-version-from-sw-vers-output-10-12
2.
安装node.js
原文：http://www.cnblogs.com/biang/p/7815947.html