我已經創建并發布了我的第一個Android應用。非常簡單 它在模擬器和某些手機上工作正常，但出現此錯誤：java.lang.RuntimeException: Unable to instantiate application cz.teamnovak.droid.Novak ESC Track guide: java.lang.ClassNotFoundException: cz.teamnovak.droid.Novak ESC Track guide in loader dalvik.system.PathClassLoader[/data/app/cz.teamnovak.droid-1.apk]    at android.app.ActivityThread$PackageInfo.makeApplication(ActivityThread.java:649)    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4232)    at android.app.ActivityThread.access$3000(ActivityThread.java:125)    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2071)    at android.os.Handler.dispatchMessage(Handler.java:99)    at android.os.Looper.loop(Looper.java:123)    at android.app.ActivityThread.main(ActivityThread.java:4627)    at java.lang.reflect.Method.invokeNative(Native Method)    at java.lang.reflect.Method.invoke(Method.java:521)    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)    at dalvik.system.NativeStart.main(Native Method)Caused by: java.lang.ClassNotFoundException: cz.teamnovak.droid.Novak ESC Track guide in loader dalvik.system.PathClassLoader[/data/app/cz.teamnovak.droid-1.apk]    at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)    at java.lang.ClassLoader.loadClass(ClassLoader.java:573)    at java.lang.ClassLoader.loadClass(ClassLoader.java:532)    at android.app.Instrumentation.newApplication(Instrumentation.java:942)    at android.app.ActivityThread$PackageInfo.makeApplication(ActivityThread.java:644)    ... 11 more知道是什么原因造成的嗎？