最近写了个用MediaPlayer播放MP3的播放器，播放时启动了Service，我想在模拟器上按返回键时在onDestroy()中停止服务，将音乐播放器给停止了，停止倒是能停止，只是我再次在应用中打开时就会报上面的错误，点击OK后再启动播放器时又可以正常播放了，哪位帮我分析下是怎么回事啊！
下面是报的错：
06-03 11:13:53.272: E/AndroidRuntime(914): FATAL EXCEPTION: main
06-03 11:13:53.272: E/AndroidRuntime(914): java.lang.RuntimeException: Unable to create service com.wind.musicplayer.serviec.MusicPlayerService: java.lang.IllegalStateException
06-03 11:13:53.272: E/AndroidRuntime(914): at android.app.ActivityThread.handleCreateService(ActivityThread.java:2263)
06-03 11:13:53.272: E/AndroidRuntime(914): at android.app.ActivityThread.access$1600(ActivityThread.java:123)
06-03 11:13:53.272: E/AndroidRuntime(914): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1201)
06-03 11:13:53.272: E/AndroidRuntime(914): at android.os.Handler.dispatchMessage(Handler.java:99)
06-03 11:13:53.272: E/AndroidRuntime(914): at android.os.Looper.loop(Looper.java:137)
06-03 11:13:53.272: E/AndroidRuntime(914): at android.app.ActivityThread.main(ActivityThread.java:4424)
06-03 11:13:53.272: E/AndroidRuntime(914): at java.lang.reflect.Method.invokeNative(Native Method)
06-03 11:13:53.272: E/AndroidRuntime(914): at java.lang.reflect.Method.invoke(Method.java:511)
06-03 11:13:53.272: E/AndroidRuntime(914): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
06-03 11:13:53.272: E/AndroidRuntime(914): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
06-03 11:13:53.272: E/AndroidRuntime(914): at dalvik.system.NativeStart.main(Native Method)
06-03 11:13:53.272: E/AndroidRuntime(914): Caused by: java.lang.IllegalStateException
06-03 11:13:53.272: E/AndroidRuntime(914): at android.media.MediaPlayer._reset(Native Method)
06-03 11:13:53.272: E/AndroidRuntime(914): at android.media.MediaPlayer.reset(MediaPlayer.java:1190)
06-03 11:13:53.272: E/AndroidRuntime(914): at com.wind.musicplayer.handle.MyMediaPlayer.initMusicPlayer(MyMediaPlayer.java:78)
06-03 11:13:53.272: E/AndroidRuntime(914): at com.wind.musicplayer.handle.MyMediaPlayer.<init>(MyMediaPlayer.java:46)
06-03 11:13:53.272: E/AndroidRuntime(914): at com.wind.musicplayer.serviec.MusicPlayerService.onCreate(MusicPlayerService.java:40)
06-03 11:13:53.272: E/AndroidRuntime(914): at android.app.ActivityThread.handleCreateService(ActivityThread.java:2253)
06-03 11:13:53.272: E/AndroidRuntime(914): ... 10 more
------解决方案--------------------
MyMediaPlayer.java码发上来看看