编译通过但是运行的时候就出错，已停止运行。看log有点不知从何下手，求指教。log如下：
10-11 13:33:46.128: E/BatteryService(160): usbOnlinePath not found
10-11 13:33:46.128: E/BatteryService(160): batteryVoltagePath not found
10-11 13:33:46.128: E/BatteryService(160): batteryTemperaturePath not found
10-11 13:33:46.228: E/PowerManagerService-JNI(160): Couldn't load power module (No such file or directory)
10-11 13:33:51.368: E/SoundPool(160): error loading /system/media/audio/ui/Lock.ogg
10-11 13:33:51.368: E/SoundPool(160): error loading /system/media/audio/ui/Unlock.ogg
10-11 13:33:51.508: E/EventHub(160): could not get driver version for /dev/input/mouse0, Not a typewriter
10-11 13:33:51.508: E/EventHub(160): could not get driver version for /dev/input/mice, Not a typewriter
10-11 13:33:51.608: E/Trace(160): error opening trace file: No such file or directory (2)
10-11 13:33:52.388: E/CommandListener(32): Failed to open /proc/sys/net/ipv6/conf/wlan0/disable_ipv6: No such file or directory
10-11 13:33:52.418: E/WifiStateMachine(160): Failed to disable IPv6: java.lang.IllegalStateException: command '1 interface ipv6 wlan0 disable' failed with '400 1 Failed to change IPv6 state (No such file or directory)'
10-11 13:33:52.469: E/MobileDataStateTracker(160): default: Ignoring feature request because could not acquire PhoneService
10-11 13:33:52.469: E/MobileDataStateTracker(160): default: Could not enable APN type "default"
10-11 13:33:54.349: E/Trace(215): error opening trace file: No such file or directory (2)
10-11 13:33:56.489: E/Trace(229): error opening trace file: No such file or directory (2)
10-11 13:33:56.779: E/ThrottleService(160): problem during onPollAlarm: java.lang.IllegalStateException: problem parsing stats: java.io.FileNotFoundException: /proc/net/xt_qtaguid/iface_stat_all: open failed: ENOENT (No such file or directory)
10-11 13:33:57.498: E/Trace(248): error opening trace file: No such file or directory (2)
10-11 13:33:57.918: E/Trace(260): error opening trace file: No such file or directory (2)
10-11 13:33:59.928: E/Trace(282): error opening trace file: No such file or directory (2)
10-11 13:34:02.218: E/ActivityThread(229): Failed to find provider info for com.android.inputmethod.latin.dictionarypack
10-11 13:34:02.218: E/BinaryDictionaryGetter(229): Could not find a dictionary pack
10-11 13:34:03.658: E/Trace(308): error opening trace file: No such file or directory (2)
10-11 13:34:06.884: E/Trace(337): error opening trace file: No such file or directory (2)
10-11 13:34:07.354: E/SoundPool(160): error loading /system/media/audio/ui/Effect_Tick.ogg
10-11 13:34:07.354: E/SoundPool(160): error loading /system/media/audio/ui/Effect_Tick.ogg
10-11 13:34:07.354: E/SoundPool(160): error loading /system/media/audio/ui/Effect_Tick.ogg
10-11 13:34:07.354: E/SoundPool(160): error loading /system/media/audio/ui/Effect_Tick.ogg
10-11 13:34:07.354: E/SoundPool(160): error loading /system/media/audio/ui/Effect_Tick.ogg
10-11 13:34:07.354: E/SoundPool(160): error loading /system/media/audio/ui/KeypressStandard.ogg
10-11 13:34:07.354: E/SoundPool(160): error loading /system/media/audio/ui/KeypressSpacebar.ogg
10-11 13:34:07.354: E/SoundPool(160): error loading /system/media/audio/ui/KeypressDelete.ogg
10-11 13:34:07.354: E/SoundPool(160): error loading /system/media/audio/ui/KeypressReturn.ogg
10-11 13:34:08.184: E/Trace(354): error opening trace file: No such file or directory (2)
10-11 13:34:11.624: E/Trace(382): error opening trace file: No such file or directory (2)
10-11 13:34:12.934: E/Trace(398): error opening trace file: No such file or directory (2)
10-11 13:34:15.764: E/Trace(417): error opening trace file: No such file or directory (2)
10-11 13:34:18.725: E/Trace(444): error opening trace file: No such file or directory (2)
10-11 13:34:20.955: E/Trace(464): error opening trace file: No such file or directory (2)
10-11 13:34:21.955: E/Trace(491): error opening trace file: No such file or directory (2)
10-11 13:34:22.885: E/Trace(508): error opening trace file: No such file or directory (2)
10-11 13:34:24.985: E/StrictMode(337): A resource was acquired at attached stack trace but never released. See java.io.Closeable for information on avoiding resource leaks.
10-11 13:34:24.985: E/StrictMode(337): java.lang.Throwable: Explicit termination method 'close' not called
10-11 13:34:24.985: E/StrictMode(337): at dalvik.system.CloseGuard.open(CloseGuard.java:184)
10-11 13:34:24.985: E/StrictMode(337): at android.database.CursorWindow.<init>(CursorWindow.java:137)
10-11 13:34:24.985: E/StrictMode(337): at android.database.CursorWindow.<init>(CursorWindow.java:41)
10-11 13:34:24.985: E/StrictMode(337): at android.database.CursorWindow$1.createFromParcel(CursorWindow.java:681)
10-11 13:34:24.985: E/StrictMode(337): at android.database.CursorWindow$1.createFromParcel(CursorWindow.java:679)
10-11 13:34:24.985: E/StrictMode(337): at android.database.BulkCursorDescriptor.readFromParcel(BulkCursorDescriptor.java:75)
10-11 13:34:24.985: E/StrictMode(337): at android.database.BulkCursorDescriptor$1.createFromParcel(BulkCursorDescriptor.java:34)
10-11 13:34:24.985: E/StrictMode(337): at android.database.BulkCursorDescriptor$1.createFromParcel(BulkCursorDescriptor.java:30)
10-11 13:34:24.985: E/StrictMode(337): at android.content.ContentProviderProxy.query(ContentProviderNative.java:369)
10-11 13:34:24.985: E/StrictMode(337): at android.content.ContentResolver.query(ContentResolver.java:370)
10-11 13:34:24.985: E/StrictMode(337): at android.content.CursorLoader.loadInBackground(CursorLoader.java:65)
10-11 13:34:24.985: E/StrictMode(337): at android.content.CursorLoader.loadInBackground(CursorLoader.java:43)
10-11 13:34:24.985: E/StrictMode(337): at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:301)
10-11 13:34:24.985: E/StrictMode(337): at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:68)
10-11 13:34:24.985: E/StrictMode(337): at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:56)
10-11 13:34:24.985: E/StrictMode(337): at android.os.AsyncTask$2.call(AsyncTask.java:287)
10-11 13:34:24.985: E/StrictMode(337): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
10-11 13:34:24.985: E/StrictMode(337): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
10-11 13:34:24.985: E/StrictMode(337): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
10-11 13:34:24.985: E/StrictMode(337): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
10-11 13:34:24.985: E/StrictMode(337): at java.lang.Thread.run(Thread.java:856)
10-11 13:34:25.035: E/StrictMode(337): A resource was acquired at attached stack trace but never released. See java.io.Closeable for information on avoiding resource leaks.
10-11 13:34:25.035: E/StrictMode(337): java.lang.Throwable: Explicit termination method 'close' not called
10-11 13:34:25.035: E/StrictMode(337): at dalvik.system.CloseGuard.open(CloseGuard.java:184)
10-11 13:34:25.035: E/StrictMode(337): at android.content.ContentResolver$CursorWrapperInner.<init>(ContentResolver.java:1835)
10-11 13:34:25.035: E/StrictMode(337): at android.content.ContentResolver.query(ContentResolver.java:392)
10-11 13:34:25.035: E/StrictMode(337): at android.content.CursorLoader.loadInBackground(CursorLoader.java:65)
10-11 13:34:25.035: E/StrictMode(337): at android.content.CursorLoader.loadInBackground(CursorLoader.java:43)
10-11 13:34:25.035: E/StrictMode(337): at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:301)
10-11 13:34:25.035: E/StrictMode(337): at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:68)
10-11 13:34:25.035: E/StrictMode(337): at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:56)
10-11 13:34:25.035: E/StrictMode(337): at android.os.AsyncTask$2.call(AsyncTask.java:287)
10-11 13:34:25.035: E/StrictMode(337): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
10-11 13:34:25.035: E/StrictMode(337): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
10-11 13:34:25.035: E/StrictMode(337): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
10-11 13:34:25.035: E/StrictMode(337): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
10-11 13:34:25.035: E/StrictMode(337): at java.lang.Thread.run(Thread.java:856)
10-11 13:34:37.924: E/Trace(560): error opening trace file: No such file or directory (2)
10-11 13:34:42.064: E/Trace(576): error opening trace file: No such file or directory (2)
10-11 13:34:45.795: E/Trace(606): error opening trace file: No such file or directory (2)
10-11 13:34:46.215: E/AndroidRuntime(606): FATAL EXCEPTION: main
10-11 13:34:46.215: E/AndroidRuntime(606): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.imooc.musicguess/com.imooc.musicguess.MainActivity}: java.lang.ClassNotFoundException: com.imooc.musicguess.MainActivity
10-11 13:34:46.215: E/AndroidRuntime(606): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)
10-11 13:34:46.215: E/AndroidRuntime(606): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
10-11 13:34:46.215: E/AndroidRuntime(606): at android.app.ActivityThread.access$600(ActivityThread.java:130)
10-11 13:34:46.215: E/AndroidRuntime(606): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
10-11 13:34:46.215: E/AndroidRuntime(606): at android.os.Handler.dispatchMessage(Handler.java:99)
10-11 13:34:46.215: E/AndroidRuntime(606): at android.os.Looper.loop(Looper.java:137)
10-11 13:34:46.215: E/AndroidRuntime(606): at android.app.ActivityThread.main(ActivityThread.java:4745)
10-11 13:34:46.215: E/AndroidRuntime(606): at java.lang.reflect.Method.invokeNative(Native Method)
10-11 13:34:46.215: E/AndroidRuntime(606): at java.lang.reflect.Method.invoke(Method.java:511)
10-11 13:34:46.215: E/AndroidRuntime(606): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
10-11 13:34:46.215: E/AndroidRuntime(606): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
10-11 13:34:46.215: E/AndroidRuntime(606): at dalvik.system.NativeStart.main(Native Method)
10-11 13:34:46.215: E/AndroidRuntime(606): Caused by: java.lang.ClassNotFoundException: com.imooc.musicguess.MainActivity
10-11 13:34:46.215: E/AndroidRuntime(606): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
10-11 13:34:46.215: E/AndroidRuntime(606): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
10-11 13:34:46.215: E/AndroidRuntime(606): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
10-11 13:34:46.215: E/AndroidRuntime(606): at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
10-11 13:34:46.215: E/AndroidRuntime(606): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)
10-11 13:34:46.215: E/AndroidRuntime(606): ... 11 more
: E/(): Device disconnected: 1
: E/(): Device disconnected
