最近我上传了一个应用程序Here。当我在我的eclipse模拟器和我的Android手机中运行我的应用程序时，它很好。 但是，当我从谷歌游戏商店下载我的应用程序并运行我的应用程序时，它被迫停止为什么会发生这种情况我不知道请回答一下。 有什么不对吗？
这是我的logcat
08-10 16:19:12.953: E/AndroidRuntime(10619): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2271)
08-10 16:19:12.953: E/AndroidRuntime(10619): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2391)
08-10 16:19:12.953: E/AndroidRuntime(10619): at android.app.ActivityThread.access$600(ActivityThread.java:151)
08-10 16:19:12.953: E/AndroidRuntime(10619): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1335)
08-10 16:19:12.953: E/AndroidRuntime(10619): at android.os.Handler.dispatchMessage(Handler.java:99)
08-10 16:19:12.953: E/AndroidRuntime(10619): at android.os.Looper.loop(Looper.java:155)
08-10 16:19:12.953: E/AndroidRuntime(10619): at android.app.ActivityThread.main(ActivityThread.java:5511)
08-10 16:19:12.953: E/AndroidRuntime(10619): at java.lang.reflect.Method.invokeNative(Native Method)
08-10 16:19:12.953: E/AndroidRuntime(10619): at java.lang.reflect.Method.invoke(Method.java:511)
08-10 16:19:12.953: E/AndroidRuntime(10619): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1029)
08-10 16:19:12.953: E/AndroidRuntime(10619): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:796)
08-10 16:19:12.953: E/AndroidRuntime(10619): at dalvik.system.NativeStart.main(Native Method)
08-10 16:19:12.953: E/AndroidRuntime(10619): Caused by: java.lang.ClassNotFoundException: com.pavel.simplecounterpluss.MainActivity
08-10 16:19:12.953: E/AndroidRuntime(10619): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
08-10 16:19:12.953: E/AndroidRuntime(10619): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
08-10 16:19:12.953: E/AndroidRuntime(10619): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
08-10 16:19:12.953: E/AndroidRuntime(10619): at android.app.Instrumentation.newActivity(Instrumentation.java:1069)
08-10 16:19:12.953: E/AndroidRuntime(10619): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2262)
08-10 16:19:12.953: E/AndroidRuntime(10619): ... 11 more
08-10 16:19:12.963: E/EmbeddedLogger(411): Application Label: Simple Counter Pluss