在線安裝appium時，執行npm --registry http://registry.cnpmjs.org install -g appium
總是報錯，“npm ERR! tar.unpack……”
卸載掉node.js後，重新下載個最新版本的node.js， 再執行npm --registry http://registry.cnpmjs.org install -g appium。
出錯了一次，繼續執行一遍。ok
C:\Users\Administrator>appium-doctor
Running Android Checks
ANDROID_HOME is set to "D:\Java\adt-bundle-windows-x86_64-20140321\sdk"
JAVA_HOME is set to "D:\Program Files\Java\jdk1.8.0_40."
ADB exists at D:\Java\adt-bundle-windows-x86_64-20140321\sdk\platform-tools\adb.exe
Android exists at D:\Java\adt-bundle-windows-x86_64-20140321\sdk\tools\android.bat
Emulator exists at D:\Java\adt-bundle-windows-x86_64-20140321\sdk\tools\emulator.exe
Android Checks were successful.
All Checks were successful
C:\Users\Administrator>appium
info: Welcome to Appium v1.4.16 (REV ae6877eff263066b26328d457bd285c0cc62430d)
info: Appium REST http interface listener started on 0.0.0.0:4723
info: Console LogLevel: debug