title: Cocos2dx - android apk crashes on start
body: <p>I'm trying to run cocos2dx sample project (the one created with create-android-project script) on Android device or emulator.</p>
  
  <p>However the application crashes on start with the following errors:</p>
  
  <blockquote>
    <p>10-16 10:50:02.249: E/AndroidRuntime(379): FATAL EXCEPTION: main 10-16
    10:50:02.249: E/AndroidRuntime(379): java.lang.RuntimeException:
    Unable to instantiate activity
    ComponentInfo{com.geckolab/com.geckolab.mahjong}:
    java.lang.ClassNotFoundException: com.geckolab.mahjong in loader
    dalvik.system.PathClassLoader[/data/app/com.geckolab-1.apk] 10-16
    10:50:02.249: E/AndroidRuntime(379):  at
    android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585)
    10-16 10:50:02.249: E/AndroidRuntime(379):    at
    android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
    10-16 10:50:02.249: E/AndroidRuntime(379):    at
    android.app.ActivityThread.access$2300(ActivityThread.java:125) 10-16
    10:50:02.249: E/AndroidRuntime(379):  at
    android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
    10-16 10:50:02.249: E/AndroidRuntime(379):    at
    android.os.Handler.dispatchMessage(Handler.java:99) 10-16
    10:50:02.249: E/AndroidRuntime(379):  at
    android.os.Looper.loop(Looper.java:123) 10-16 10:50:02.249:
    E/AndroidRuntime(379):    at
    android.app.ActivityThread.main(ActivityThread.java:4627) 10-16
    10:50:02.249: E/AndroidRuntime(379):  at
    java.lang.reflect.Method.invokeNative(Native Method) 10-16
    10:50:02.249: E/AndroidRuntime(379):  at
    java.lang.reflect.Method.invoke(Method.java:521) 10-16 10:50:02.249:
    E/AndroidRuntime(379):    at
    com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
    10-16 10:50:02.249: E/AndroidRuntime(379):    at
    com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 10-16
    10:50:02.249: E/AndroidRuntime(379):  at
    dalvik.system.NativeStart.main(Native Method) 10-16 10:50:02.249:
    E/AndroidRuntime(379): Caused by: java.lang.ClassNotFoundException:
    com.geckolab.mahjong in loader
    dalvik.system.PathClassLoader[/data/app/com.geckolab-1.apk] 10-16
    10:50:02.249: E/AndroidRuntime(379):  at
    dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
    10-16 10:50:02.249: E/AndroidRuntime(379):    at
    java.lang.ClassLoader.loadClass(ClassLoader.java:573) 10-16
    10:50:02.249: E/AndroidRuntime(379):  at
    java.lang.ClassLoader.loadClass(ClassLoader.java:532) 10-16
    10:50:02.249: E/AndroidRuntime(379):  at
    android.app.Instrumentation.newActivity(Instrumentation.java:1021)
    10-16 10:50:02.249: E/AndroidRuntime(379):    at
    android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2577)
    10-16 10:50:02.249: E/AndroidRuntime(379):    ... 11 more</p>
  </blockquote>
  
  <p>Any idea what is going wrong? The build_native.sh script seems to work fine, I resolved some Eclipse errors by changing compiler complience level to 1.6 and adding libcocos2dx.jar to my project's build path.</p>
  
  <p>Cheers,
  Marcin</p>