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androidgoogle-mapsmapactivity

Application crashes with error on maps.jar file when install from exported apk and works if i installed it from eclipse

my application uses google maps api. It works well if i installed it from eclipse but when i export apk and install from that apk the application crashes and report this error 

11-15 16:30:29.692: E/AndroidRuntime(14405): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.mycom.myapp/com.mycom.myapp.MainActivity}: java.lang.ClassNotFoundException: com.mycom.myapp.MainActivity in loader dalvik.system.PathClassLoader[/system/framework/com.google.android.maps.jar:/mnt/aseccom.mycom.myapp-1/pkg.apk]


    11-16 01:47:41.999: E/AndroidRuntime(19577):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1785)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1893)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at android.app.ActivityThread.access$1500(ActivityThread.java:135)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1054)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at android.os.Handler.dispatchMessage(Handler.java:99)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at android.os.Looper.loop(Looper.java:150)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at android.app.ActivityThread.main(ActivityThread.java:4389)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at java.lang.reflect.Method.invokeNative(Native Method)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at java.lang.reflect.Method.invoke(Method.java:507)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at dalvik.system.NativeStart.main(Native Method)
11-16 01:47:41.999: E/AndroidRuntime(19577): Caused by: java.lang.ClassNotFoundException: com.mycom.myapp.MainActivity in loader dalvik.system.PathClassLoader[/system/framework/com.google.android.maps.jar:/mnt/asec/com.mycom.myapp-1/pkg.apk]
11-16 01:47:41.999: E/AndroidRuntime(19577):    at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at android.app.Instrumentation.newActivity(Instrumentation.java:1040)
11-16 01:47:41.999: E/AndroidRuntime(19577):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1777)
11-16 01:47:42.009: E/EmbeddedLogger(183): App crashed! Process: com.mycom.myapp
11-16 01:47:42.009: E/EmbeddedLogger(183): App crashed! Package: com.mycom.myapp v1 (1.0)
11-16 01:47:42.009: E/EmbeddedLogger(183): Error getting package label: com.mycom.myapp
11-16 01:47:42.009: E/EmbeddedLogger(183): java.lang.NullPointerException
11-16 01:47:42.009: E/EmbeddedLogger(183):  at com.htc.server.embedded.EmbeddedLogger.onHandleApplicationCrash(EmbeddedLogger.java:59)
11-16 01:47:42.009: E/EmbeddedLogger(183):  at com.android.server.am.ActivityManagerService.handleApplicationCrash(ActivityManagerService.java:7739)
11-16 01:47:42.009: E/EmbeddedLogger(183):  at android.app.ActivityManagerNative.onTransact(ActivityManagerNative.java:1033)
11-16 01:47:42.009: E/EmbeddedLogger(183):  at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:1657)
11-16 01:47:42.009: E/EmbeddedLogger(183):  at android.os.Binder.execTransact(Binder.java:320)
11-16 01:47:42.009: E/EmbeddedLogger(183):  at dalvik.system.NativeStart.run(Native Method)
11-16 01:47:42.009: E/EmbeddedLogger(183): Application Label: <ERROR>

Can any one help ?

Solution

  • This often happens to me when I export a signed apk from Eclipse. I haven't got to the root of the issue but my work-around is simply to re-export the apk and try installing on to a device for testing. I would estimate about 3/4 of the time the apk is fine and the rest of the time it crashes immediately upon trying to open the app.