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更新node方式
$ brew update
$ brew uninstall node
$ brew install node
$ sudo brew postinstall node # brew error message provided this recommendation; only worked with sudo
to test that npm is working (tho appears to build an index, which not everyone may want):
$ npm search # returns long list of packages
以上 $ sudo brew postinstall node 可以修复 npm
转：
1. 爬墙
因为后续安装过程中可能会碰到墙的问题，所以首先得解决爬墙的问题。
我的方便，公司提供代理。
2. java
guowenxie-macbookair:~ guowenxie$ java -version
java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)
3. git
guowenxie-macbookair:~ guowenxie$ git --version
git version 1.8.5.2 (Apple Git-48)
4. ruby
guowenxie-macbookair:~ guowenxie$ ruby -v
ruby 2.0.0p451 (2014-02-24 revision 45167) [universal.x86_64-darwin13]
5. brew
guowenxie-macbookair:~ guowenxie$ brew -v
Homebrew 0.9.5
这边提下brew的安装，brew是Mac OS不可或缺的套件管理器
执行下面命令ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
6. node
有了brew安装node就方便了brew install node
7. npm
guowenxie-macbookair:~ guowenxie$ npm -v
2.0.0-alpha-5
8. Appium
现在可以开始安装Appium
guowenxie-macbookair:~ guowenxie$ appium -v
1.2.0
9. wd
npm install wd
10. Xcode和Android SDK
这个不说了
11. 检查环境
Appium提供了一个doctor，运行appium-doctor
guowenxie-macbookair:~ guowenxie$ appium-doctor
Running iOS Checks
? Xcode is installed at /Applications/Xcode.app/Contents/Developer
?
Xcode Command Line Tools are NOT installed: Error: Command failed: No
receipt for ‘com.apple.pkg.CLTools_Executables‘ found at ‘/‘.
Fix it? (y/n) y
Press any key to continue:
? Xcode Command Line Tools are installed.
? DevToolsSecurity is enabled.
? The Authorization DB is set up properly.
? Node binary found at /usr/local/bin/node
? iOS Checks were successful.
Running Android Checks
? ANDROID_HOME is set but does not exist on the file system at "Users/guowenxie/Documents/adt-bundle_mac-x86_64-20140702/sdk"
Appium-Doctor detected problems. Please fix and rerun Appium-Doctor.
这里可以看到我Xcode Command Line Tools没有安装，这个方便，Fix it?的时候输入Y，就能自动导向安装了。
另一个是ANDROID_HOME的环境变量没配置好，那么我们要配置下。
12. bash_profile文件
Mac 默认是没有这个文件的，我们自己建一个touch .bash_profile
vi .bash_profile
打开bash_profile文件配置ANDROID_HOME和JAVA_HOME
export ANDROID_HOME="/Users/guowenxie/Documents/adt-bundle-mac-x86_64-20140702/sdk"
export JAVA_HOME=$(/usr/libexec/java_home)
source .bash_profile
好了，再次运行appium-doctor
guowenxie-macbookair:~ guowenxie$ appium-doctor
Running iOS Checks
? Xcode is installed at /Applications/Xcode.app/Contents/Developer
? Xcode Command Line Tools are installed.
? DevToolsSecurity is enabled.
? The Authorization DB is set up properly.
? Node binary found at /usr/local/bin/node
? iOS Checks were successful.
Running Android Checks
? ANDROID_HOME is set to "/Users/guowenxie/Documents/adt-bundle-mac-x86_64-20140702/sdk"
? JAVA_HOME is set to "/usr/libexec/java_home."
? ADB exists at /Users/guowenxie/Documents/adt-bundle-mac-x86_64-20140702/sdk/platform-tools/adb
? Android exists at /Users/guowenxie/Documents/adt-bundle-mac-x86_64-20140702/sdk/tools/android
? Emulator exists at /Users/guowenxie/Documents/adt-bundle-mac-x86_64-20140702/sdk/tools/emulator
? Android Checks were successful.
? All Checks were successful
到此，环境基本准备好了。
最后，如果不想通过命令行安装Appium，也可以安装dmg
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原文地址：http://www.cnblogs.com/100bluesea/p/5825508.html
