Error: Please install Android target 19 (the Android newest SDK). Make sure you have the latest Android tools installed as well. Run "android" from your command-line to install/update any missing SDKs or tools.
解决方法： 安装 android 4.4.2 sdk
安装sdk时出现 ‘Download interrupted: hostname in certificate didn't match:
!= OR Done. Nothing was installed.’
解决方法： Android SDK Manager中偏好设置
emulator: ERROR: This AVD's configuration is missing a kernel file!!
解决方法： 安装 ARM EABI v7a System Image