从log中截的一段,求大神知道错误在哪
E/AndroidRuntime( 2818): FATAL EXCEPTION: main
E/AndroidRuntime( 2818): java.lang.RuntimeException: Unable to start service com.android.music.MediaPlaybackService@41c06648 with Intent { act=com.android.music.musicservicecommand cmp=com.android.music/.MediaPlaybackService (has extras) }: java.lang.NullPointerException
E/AndroidRuntime( 2818): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2518)
E/AndroidRuntime( 2818): at android.app.ActivityThread.access$1900(ActivityThread.java:134)
E/AndroidRuntime( 2818): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1310)
E/AndroidRuntime( 2818): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 2818): at android.os.Looper.loop(Looper.java:154)
E/AndroidRuntime( 2818): at android.app.ActivityThread.main(ActivityThread.java:4624)
E/AndroidRuntime( 2818): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 2818): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime( 2818): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)
E/AndroidRuntime( 2818): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
E/AndroidRuntime( 2818): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 2818): Caused by: java.lang.NullPointerException
E/AndroidRuntime( 2818): at com.android.music.MediaPlaybackService.openCurrent(MediaPlaybackService.java:1629)
E/AndroidRuntime( 2818): at com.android.music.MediaPlaybackService.next(MediaPlaybackService.java:2087)
E/AndroidRuntime( 2818): at com.android.music.MediaPlaybackService.onStartCommand(MediaPlaybackService.java:1174)
E/AndroidRuntime( 2818): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2501)
E/AndroidRuntime( 2818): ... 10 more
I/InputDispatcher( 307): Waiting because focused window still processing previous input.
I/InputDispatcher( 307): Waiting because focused wind