AndroidRuntime Error: at com.google.android.maps.MapActivity.(Unknown Source)

I have compiled successfully but encounted a runtime error when I import google maps to my proj, below is my proj and the fail log. Any help will be much appreciated.

my proj

[fail log]: 05-21 12:28:13.303: E/AndroidRuntime(30336): Process: com.iceskysl.iTracks, PID: 30336 05-21 12:28:13.303: E/AndroidRuntime(30336): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.iceskysl.iTracks/com.iceskysl.iTracks.ShowTrack}: java.lang.RuntimeException: stub 05-21 12:28:13.303: E/AndroidRuntime(30336): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2113) 05-21 12:28:13.303: E/AndroidRuntime(30336): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2236) 05-21 12:28:13.303: E/AndroidRuntime(30336): at android.app.ActivityThread.access$800(ActivityThread.java:138) 05-21 12:28:13.303: E/AndroidRuntime(30336): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1199) 05-21 12:28:13.303: E/AndroidRuntime(30336): at android.os.Handler.dispatchMessage(Handler.java:102) 05-21 12:28:13.303: E/AndroidRuntime(30336): at android.os.Looper.loop(Looper.java:136) 05-21 12:28:13.303: E/AndroidRuntime(30336): at android.app.ActivityThread.main(ActivityThread.java:5095) 05-21 12:28:13.303: E/AndroidRuntime(30336): at java.lang.reflect.Method.invokeNative(Native Method) 05-21 12:28:13.303: E/AndroidRuntime(30336): at java.lang.reflect.Method.invoke(Method.java:515) 05-21 12:28:13.303: E/AndroidRuntime(30336): at com.android.inteal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 05-21 12:28:13.303: E/AndroidRuntime(30336): at com.android.inteal.os.ZygoteInit.main(ZygoteInit.java:602) 05-21 12:28:13.303: E/AndroidRuntime(30336): at dalvik.system.NativeStart.main(Native Method) 05-21 12:28:13.303: E/AndroidRuntime(30336): Caused by: java.lang.RuntimeException: stub 05-21 12:28:13.303: E/AndroidRuntime(30336): at com.google.android.maps.MapActivity.(Unknown Source) 05-21 12:28:13.303: E/AndroidRuntime(30336): at com.iceskysl.iTracks.ShowTrack.(ShowTrack.java:33) 05-21 12:28:13.303: E/AndroidRuntime(30336): at java.lang.Class.newInstanceImpl(Native Method) 05-21 12:28:13.303: E/AndroidRuntime(30336): at java.lang.Class.newInstance(Class.java:1208) 05-21 12:28:13.303: E/AndroidRuntime(30336): at android.app.Instrumentation.newActivity(Instrumentation.java:1061) 05-21 12:28:13.303: E/AndroidRuntime(30336): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2104) 05-21 12:28:13.303: E/AndroidRuntime(30336): ... 11 more