level 1
level 7
请参考react-native官网中的一些错误解决方法，其中有一条如下：
Unable to connect to development server
iOS
Ensure that you are on the same WiFi network as your computer. If you're using a cell data plan, your phone can't access your computer's local IP address.
Android
You need to run adb reverse tcp:8081 tcp:8081 to forward requests from the device to your computer. This works only on Android 5.0 and newer.
2016年03月08日 14点03分
5
Unable to connect to development server
iOS
Ensure that you are on the same WiFi network as your computer. If you're using a cell data plan, your phone can't access your computer's local IP address.
Android
You need to run adb reverse tcp:8081 tcp:8081 to forward requests from the device to your computer. This works only on Android 5.0 and newer.
