title: could not find class exception facebook on android app.how?
body: <p>i am doing facebook app in my project.</p>
  
  <p>i followed this step the sample app in this link.</p>
  
  <p><a href="http://code.google.com/p/fbconnect-android/downloads/list" rel="nofollow noreferrer">http://code.google.com/p/fbconnect-android/downloads/list</a></p>
  
  <p>now i got this exception in my Logcat.</p>
  
  <pre><code>02-20 22:02:29.020: INFO/ActivityManager(58): Starting activity: Intent { cmp=com.example.brown/.Brown_FaceBook }
  02-20 22:02:29.409: ERROR/dalvikvm(236): Could not find class 'com.codecarpet.fbconnect.FBPermissionActivity', referenced from method com.example.brown.Brown_FaceBook.askPermission
  02-20 22:02:29.418: WARN/dalvikvm(236): VFY: unable to resolve const-class 78 (Lcom/codecarpet/fbconnect/FBPermissionActivity;) in Lcom/example/brown/Brown_FaceBook;
  02-20 22:02:29.418: DEBUG/dalvikvm(236): VFY: replacing opcode 0x1c at 0x0002
  02-20 22:02:29.428: DEBUG/dalvikvm(236): Making a copy of Lcom/example/brown/Brown_FaceBook;.askPermission code (125 bytes)
  02-20 22:02:29.438: INFO/dalvikvm(236): Could not find method com.codecarpet.fbconnect.FBSession.getUid, referenced from method com.example.brown.Brown_FaceBook.checkPermission
  02-20 22:02:29.448: WARN/dalvikvm(236): VFY: unable to resolve virtual method 124: Lcom/codecarpet/fbconnect/FBSession;.getUid ()Ljava/lang/Long;
  02-20 22:02:29.448: DEBUG/dalvikvm(236): VFY: replacing opcode 0x6e at 0x0009
  02-20 22:02:29.457: DEBUG/dalvikvm(236): Making a copy of Lcom/example/brown/Brown_FaceBook;.checkPermission code (112 bytes)
  02-20 22:02:29.469: ERROR/dalvikvm(236): Could not find class 'com.codecarpet.fbconnect.FBFeedActivity', referenced from method com.example.brown.Brown_FaceBook.publishFeed
  02-20 22:02:29.469: WARN/dalvikvm(236): VFY: unable to resolve const-class 75 (Lcom/codecarpet/fbconnect/FBFeedActivity;) in Lcom/example/brown/Brown_FaceBook;
  02-20 22:02:29.478: DEBUG/dalvikvm(236): VFY: replacing opcode 0x1c at 0x0002
  02-20 22:02:29.478: DEBUG/dalvikvm(236): Making a copy of Lcom/example/brown/Brown_FaceBook;.publishFeed code (68 bytes)
  02-20 22:02:29.497: WARN/dalvikvm(236): Unable to resolve superclass of Lcom/example/brown/Brown_FaceBook$FBSessionDelegateImpl; (81)
  02-20 22:02:29.497: WARN/dalvikvm(236): Link of class 'Lcom/example/brown/Brown_FaceBook$FBSessionDelegateImpl;' failed
  02-20 22:02:29.507: ERROR/dalvikvm(236): Could not find class 'com.example.brown.Brown_FaceBook$FBSessionDelegateImpl', referenced from method com.example.brown.Brown_FaceBook.onCreate
  02-20 22:02:29.521: WARN/dalvikvm(236): VFY: unable to resolve new-instance 95 (Lcom/example/brown/Brown_FaceBook$FBSessionDelegateImpl;) in Lcom/example/brown/Brown_FaceBook;
  02-20 22:02:29.528: DEBUG/dalvikvm(236): VFY: replacing opcode 0x22 at 0x0015
  02-20 22:02:29.528: DEBUG/dalvikvm(236): Making a copy of Lcom/example/brown/Brown_FaceBook;.onCreate code (292 bytes)
  02-20 22:02:29.537: WARN/dalvikvm(236): Unable to resolve superclass of Lcom/example/brown/Brown_FaceBook$FBSessionDelegateImpl; (81)
  02-20 22:02:29.537: WARN/dalvikvm(236): Link of class 'Lcom/example/brown/Brown_FaceBook$FBSessionDelegateImpl;' failed
  02-20 22:02:29.547: ERROR/dalvikvm(236): Could not find class 'com.example.brown.Brown_FaceBook$FBSessionDelegateImpl', referenced from method com.example.brown.Brown_FaceBook.onCreate
  02-20 22:02:29.558: WARN/dalvikvm(236): VFY: unable to resolve new-instance 95 (Lcom/example/brown/Brown_FaceBook$FBSessionDelegateImpl;) in Lcom/example/brown/Brown_FaceBook;
  02-20 22:02:29.558: DEBUG/dalvikvm(236): VFY: replacing opcode 0x22 at 0x007e
  02-20 22:02:29.570: DEBUG/AndroidRuntime(236): Shutting down VM
  02-20 22:02:29.577: WARN/dalvikvm(236): threadid=3: thread exiting with uncaught exception (group=0x4001b188)
  02-20 22:02:29.587: ERROR/AndroidRuntime(236): Uncaught handler: thread main exiting due to uncaught exception
  02-20 22:02:29.597: ERROR/AndroidRuntime(236): java.lang.NoClassDefFoundError: com.example.brown.Brown_FaceBook$FBSessionDelegateImpl
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at com.example.brown.Brown_FaceBook.onCreate(Brown_FaceBook.java:80)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at android.app.ActivityThread.access$2200(ActivityThread.java:119)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at android.os.Handler.dispatchMessage(Handler.java:99)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at android.os.Looper.loop(Looper.java:123)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at  android.app.ActivityThread.main(ActivityThread.java:4363)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at java.lang.reflect.Method.invokeNative(Native Method)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at java.lang.reflect.Method.invoke(Method.java:521)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
  02-20 22:02:29.597: ERROR/AndroidRuntime(236):     at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>thanks.</p>