用 appium-docotor 检查一切正常，
C:\Users\zeng>appium-doctor 'appium-doctor'
Running Android Checks
✔ ANDROID_HOME is set to "D:\android-sdk\android-sdk-windows"
✔ JAVA_HOME is set to "C:\Java\jdk1.6.0_10."
✔ ADB exists at D:\android-sdk\android-sdk-windows\platform-tools\adb.exe
✔ Android exists at D:\android-sdk\android-sdk-windows\tools\android.bat
✔ Emulator exists at D:\android-sdk\android-sdk-windows\tools\emulator.exe
✔ Android Checks were successful.

✔ All Checks were successful

运行 ContactManager.apk 这个例子，提示 Failed to launch test


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