求助，android移动包内文件后出错！！！

[qq370465448]

本来src目录下只有一个包名为ayy.index,ayy.index内含有两个java文件（MainAcitity.java和AYY_mMusic.java）,为方便开发管理，我在src目录下又建了一个包（ayy.m.music）,我把AYY_mMusic.java移动到ayy.m.music后编译出错了，在AndroidManifest.xml里修改成
<activity android:name="ayy.m.music.AYY_mMusic"也行，错误提示如下：

03-29 18:42:22.223: E/AndroidRuntime(549): FATAL EXCEPTION: main
03-29 18:42:22.223: E/AndroidRuntime(549): java.lang.RuntimeException: Unable to start activity ComponentInfo{ayy.index/ayy.index.AYY_MainTab}: java.lang.RuntimeException: Unable to start activity ComponentInfo{ayy.index/ayy.m.music.AYY_mMusic}: android.content.ActivityNotFoundException: Unable to find explicit activity class {ayy.index/ayy.m.music.AYY_Downloaded_Music}; have you declared this activity in your AndroidManifest.xml?
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.os.Handler.dispatchMessage(Handler.java:99)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.os.Looper.loop(Looper.java:123)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread.main(ActivityThread.java:3683)
03-29 18:42:22.223: E/AndroidRuntime(549): at java.lang.reflect.Method.invokeNative(Native Method)
03-29 18:42:22.223: E/AndroidRuntime(549): at java.lang.reflect.Method.invoke(Method.java:507)
03-29 18:42:22.223: E/AndroidRuntime(549): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
03-29 18:42:22.223: E/AndroidRuntime(549): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
03-29 18:42:22.223: E/AndroidRuntime(549): at dalvik.system.NativeStart.main(Native Method)
03-29 18:42:22.223: E/AndroidRuntime(549): Caused by: java.lang.RuntimeException: Unable to start activity ComponentInfo{ayy.index/ayy.m.music.AYY_mMusic}: android.content.ActivityNotFoundException: Unable to find explicit activity class {ayy.index/ayy.m.music.AYY_Downloaded_Music}; have you declared this activity in your AndroidManifest.xml?
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread.startActivityNow(ActivityThread.java:1487)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.LocalActivityManager.moveToState(LocalActivityManager.java:127)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:339)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.widget.TabHost$IntentContentStrategy.getContentView(TabHost.java:654)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.widget.TabHost.setCurrentTab(TabHost.java:326)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.widget.TabHost.addTab(TabHost.java:216)
03-29 18:42:22.223: E/AndroidRuntime(549): at ayy.index.AYY_MainTab.onCreate(AYY_MainTab.java:69)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
03-29 18:42:22.223: E/AndroidRuntime(549): ... 11 more
03-29 18:42:22.223: E/AndroidRuntime(549): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {ayy.index/ayy.m.music.AYY_Downloaded_Music}; have you declared this activity in your AndroidManifest.xml?
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1405)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread.resolveActivityInfo(ActivityThread.java:1457)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.LocalActivityManager.startActivity(LocalActivityManager.java:277)
03-29 18:42:22.223: E/AndroidRuntime(549): at ayy.m.music.AYY_mMusic.onCreate(AYY_mMusic.java:43)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
03-29 18:42:22.223: E/AndroidRuntime(549): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
03-29 18:42:22.223: E/AndroidRuntime(549): ... 20 more

麻烦各位前辈帮忙解决

[花谢尊前不敢香]

配置文件呢，对应的目录结构图，顶部的包名看下。