can u pls tell me whats wrong in my app, it doesn't have any compile errors
<pre><code>07-10 17:13:08.717: E/AndroidRuntime(1287): FATAL EXCEPTION: main
07-10 17:13:08.717: E/AndroidRuntime(1287): java.lang.IllegalStateException: Could not execute method of the activity

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.view.View$1.onClick(View.java:3591)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.view.View.performClick(View.java:4084)


07-10 17:13:08.717: E/AndroidRuntime(1287): at android.view.View$PerformClick.run(View.java:16966)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.os.Handler.handleCallback(Handler.java:615)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.os.Handler.dispatchMessage(Handler.java:92)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.os.Looper.loop(Looper.java:137)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.app.ActivityThread.main(ActivityThread.java:4745)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at java.lang.reflect.Method.invokeNative(Native Method)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at java.lang.reflect.Method.invoke(Method.java:511)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at dalvik.system.NativeStart.main(Native Method)
07-10 17:13:08.717: E/AndroidRuntime(1287): Caused by: java.lang.reflect.InvocationTargetException

07-10 17:13:08.717: E/AndroidRuntime(1287):     at java.lang.reflect.Method.invokeNative(Native Method)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at java.lang.reflect.Method.invoke(Method.java:511)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.view.View$1.onClick(View.java:3586)

07-10 17:13:08.717: E/AndroidRuntime(1287):     ... 11 more


07-10 17:13:08.717: E/AndroidRuntime(1287): Caused by: 
</code></pre>

<p>android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.send/com.example.send.DisplayActivityMessage}; have you declared this activity in your AndroidManifest.xml?</p>

<pre><code>07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1541)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.app.Instrumentation.execStartActivity(Instrumentation.java:1416)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.app.Activity.startActivityForResult(Activity.java:3351)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.app.Activity.startActivityForResult(Activity.java:3312)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.app.Activity.startActivity(Activity.java:3522)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at android.app.Activity.startActivity(Activity.java:3490)

07-10 17:13:08.717: E/AndroidRuntime(1287):     at com.example.send.send.sendMessage(send.java:25)

07-10 17:13:08.717: E/AndroidRuntime(1287):     ... 14 more
07-10 17:13:10.875: I/Process(1287): Sending signal. PID: 1287 SIG: 9
</code></pre>
