BUILD SUCCESSFUL
Total time: 30.251 secs
Running E:\android-sdk/platform-tools/adb -s 022BTF7N45008109 reverse tcp:8081 tcp:8081
error: closed
Could not run adb reverse: Command failed: E:\android-sdk/platform-tools/adb -s 022BTF7N45008109 reverse tcp:8081 tcp:8081
Starting the app on 022BTF7N45008109 (E:\android-sdk/platform-tools/adb -s 022BTF7N45008109 shell am start -n com.axiamireader/com.axiamireader.MainActivity)...
Starting: Intent { cmp=com.axiamireader/.MainActivity }
java.lang.SecurityException: Permission Denial: starting Intent { flg=0x10000000 cmp=com.axiamireader/.MainActivity } from null (pid=6199, uid=2000) not exported from uid 10028
at android.os.Parcel.readException(Parcel.java:1425)
at android.os.Parcel.readException(Parcel.java:1379)
at android.app.ActivityManagerProxy.startActivityAsUser(ActivityManagerNative.java:1941)
at com.android.commands.am.Am.runStart(Am.java:503)
at com.android.commands.am.Am.run(Am.java:110)
at com.android.commands.am.Am.main(Am.java:83)
at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:235)
at dalvik.system.NativeStart.main(Native Method)
Process finished with exit code 0
请求这种是什么情况
已经解决了，是因为我用的开发工具是webStorm。
用这个开发工具运行的时候，会自动执行react-native start，这个是使用的8081。然后再自动安装app到手机上运行，这个时候就报了这个错误。
我的解决办法是自己用命令行分别启动
也就是在两个dos窗口中进入项目根目录分别执行react-native run-android和react-native start