title: stopped unexpectedly in android eclipse
body: <p>can someone help me? I would like to display a map in the screen of my android but when I try to run my emulator, I got the error: "unexpectedly stopped, please try again". 
  I use eclipse .
  Here are my log:  </p>
  
  <pre><code>10-03 12:20:48.578: W/dalvikvm(1643): Unable to resolve superclass of Lcom/formation/gmaps/MainActivity; (976)
  10-03 12:20:48.578: W/dalvikvm(1643): Link of class 'Lcom/formation/gmaps/MainActivity;' failed
  10-03 12:20:48.597: D/AndroidRuntime(1643): Shutting down VM
  10-03 12:20:48.597: W/dalvikvm(1643): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
  10-03 12:20:48.627: E/AndroidRuntime(1643): FATAL EXCEPTION: main
  10-03 12:20:48.627: E/AndroidRuntime(1643): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.formation.gmaps/com.formation.gmaps.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.formation.gmaps.MainActivity" on path: /data/app/com.formation.gmaps-1.apk
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at android.os.Handler.dispatchMessage(Handler.java:99)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at android.os.Looper.loop(Looper.java:137)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at android.app.ActivityThread.main(ActivityThread.java:5041)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at java.lang.reflect.Method.invokeNative(Native Method)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at java.lang.reflect.Method.invoke(Method.java:511)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at dalvik.system.NativeStart.main(Native Method)
  10-03 12:20:48.627: E/AndroidRuntime(1643): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.formation.gmaps.MainActivity" on path: /data/app/com.formation.gmaps-1.apk
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
  10-03 12:20:48.627: E/AndroidRuntime(1643):     ... 11 more
  </code></pre>
  
  <p>Thanks! </p>