Android Map of own application not shown
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I have a strange problem with my android application. I implemented maps, i got the api-key as it should be done, inserted it in my app....when i launch the app on my phone directly through Eclipse, it works. When i export the app into an apk and pass it to friends in order to test it on other phones, tha map is never shown and the app crashes, because the mapController in null:

    07-24 14:52:07.425: E/AndroidRuntime(4107): FATAL EXCEPTION: main
    07-24 14:52:07.425: E/AndroidRuntime(4107): java.lang.NullPointerException
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at com.google.android.maps.MapController.animateTo(MapController.java:232)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at com.google.android.maps.MapController.animateTo(MapController.java:203)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at com.emaborsa.cablePark.activities.MainActivity$5.onItemClick(MainActivity.java:492)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at com.emaborsa.cablePark.popUpMenu.MapPopupMenu$1.onClick(MapPopupMenu.java:163)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at android.view.View.performClick(View.java:4084)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at android.view.View$PerformClick.run(View.java:16966)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at android.os.Handler.handleCallback(Handler.java:615)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at android.os.Handler.dispatchMessage(Handler.java:92)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at android.os.Looper.loop(Looper.java:137)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at android.app.ActivityThread.main(ActivityThread.java:4745)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at java.lang.reflect.Method.invokeNative(Native Method)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at java.lang.reflect.Method.invoke(Method.java:511)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
    07-24 14:52:07.425: E/AndroidRuntime(4107): 	at dalvik.system.NativeStart.main(Native Method)

