Demo App crash when start - always

[felipeflorencio]

Hello, i need help, everytime i trie run demo app he crash, i'm using nexus 4 to test and samsung on android v2.3.6

06-27 13:36:36.302: W/dalvikvm(13036): Unable to resolve superclass of Lcom/aphidmobile/flip/demo/FlipFragmentActivity; (34)
06-27 13:36:36.302: W/dalvikvm(13036): Link of class 'Lcom/aphidmobile/flip/demo/FlipFragmentActivity;' failed
06-27 13:36:36.302: E/dalvikvm(13036): Could not find class 'com.aphidmobile.flip.demo.FlipFragmentActivity', referenced from method com.aphidmobile.flip.demo.MainActivity.getData
06-27 13:36:36.302: W/dalvikvm(13036): VFY: unable to resolve const-class 98 (Lcom/aphidmobile/flip/demo/FlipFragmentActivity;) in Lcom/aphidmobile/flip/demo/MainActivity;
06-27 13:36:36.302: D/dalvikvm(13036): VFY: replacing opcode 0x1c at 0x003f
06-27 13:36:36.312: D/AndroidRuntime(13036): Shutting down VM
06-27 13:36:36.312: W/dalvikvm(13036): threadid=1: thread exiting with uncaught exception (group=0x4138c930)
06-27 13:36:36.312: E/AndroidRuntime(13036): FATAL EXCEPTION: main
06-27 13:36:36.312: E/AndroidRuntime(13036): java.lang.NoClassDefFoundError: com.aphidmobile.flip.demo.FlipFragmentActivity
06-27 13:36:36.312: E/AndroidRuntime(13036): at com.aphidmobile.flip.demo.MainActivity.getData(MainActivity.java:86)
06-27 13:36:36.312: E/AndroidRuntime(13036): at com.aphidmobile.flip.demo.MainActivity.onCreate(MainActivity.java:44)
06-27 13:36:36.312: E/AndroidRuntime(13036): at android.app.Activity.performCreate(Activity.java:5104)
06-27 13:36:36.312: E/AndroidRuntime(13036): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
06-27 13:36:36.312: E/AndroidRuntime(13036): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
06-27 13:36:36.312: E/AndroidRuntime(13036): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
06-27 13:36:36.312: E/AndroidRuntime(13036): at android.app.ActivityThread.access$600(ActivityThread.java:141)
06-27 13:36:36.312: E/AndroidRuntime(13036): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
06-27 13:36:36.312: E/AndroidRuntime(13036): at android.os.Handler.dispatchMessage(Handler.java:99)
06-27 13:36:36.312: E/AndroidRuntime(13036): at android.os.Looper.loop(Looper.java:137)
06-27 13:36:36.312: E/AndroidRuntime(13036): at android.app.ActivityThread.main(ActivityThread.java:5041)
06-27 13:36:36.312: E/AndroidRuntime(13036): at java.lang.reflect.Method.invokeNative(Native Method)
06-27 13:36:36.312: E/AndroidRuntime(13036): at java.lang.reflect.Method.invoke(Method.java:511)
06-27 13:36:36.312: E/AndroidRuntime(13036): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
06-27 13:36:36.312: E/AndroidRuntime(13036): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
06-27 13:36:36.312: E/AndroidRuntime(13036): at dalvik.system.NativeStart.main(Native Method)

Can any one help me??