报错信息：
[Error] Error: Unknown error: not all success patterns were matched. It means that "react-native run-android" command failed. Please, check the View -> Toggle Output -> React Native, View -> Toggle Output -> React Native: Run android output windows.
解决的办法是启动模拟器，默认是安装到模拟器上的，我插了手机，只是没有被识别到。
后来把手机的usb调试打开后，也可以成功的把应用安装到手机上调试了。