Need help with a error in my app - Android Q&A, Help & Troubleshooting

Hi i am making a muiti-utility math app the main screen has a calculator and a button that says tools when you click tools it takes you to the tools activity there I have a button that says factor calculator and it's (SUPPOSED TO) go to the Factor activity witch is (SUPPOSED TO) load Factor.html from assets/www/Factor.html using phonegap 2.9.0 Phonegap is set up right i have checked!! but when you click the factor calculator button i get a error message saying app name has stopped Please help me!!
here's a copy of my log cat:
06-28 12:53:41.005: D/AndroidRuntime(21461): Shutting down VM
06-28 12:53:41.015: W/dalvikvm(21461): threadid=1: thread exiting with uncaught exception (group=0x40a73930)
06-28 12:53:41.025: E/AndroidRuntime(21461): FATAL EXCEPTION: main
06-28 12:53:41.025: E/AndroidRuntime(21461): java.lang.NoClassDefFoundError: com.h2a.mtz.Factorpg
06-28 12:53:41.025: E/AndroidRuntime(21461): at com.h2a.mtz.Tools$1.onClick(Tools.java:35)
06-28 12:53:41.025: E/AndroidRuntime(21461): at android.view.View.performClick(View.java:4204)
06-28 12:53:41.025: E/AndroidRuntime(21461): at android.view.View$PerformClick.run(View.java:17355)
06-28 12:53:41.025: E/AndroidRuntime(21461): at android.os.Handler.handleCallback(Handler.java:725)
06-28 12:53:41.025: E/AndroidRuntime(21461): at android.os.Handler.dispatchMessage(Handler.java:92)
06-28 12:53:41.025: E/AndroidRuntime(21461): at android.os.Looper.loop(Looper.java:137)
06-28 12:53:41.025: E/AndroidRuntime(21461): at android.app.ActivityThread.main(ActivityThread.java:5041)
06-28 12:53:41.025: E/AndroidRuntime(21461): at java.lang.reflect.Method.invokeNative(Native Method)
06-28 12:53:41.025: E/AndroidRuntime(21461): at java.lang.reflect.Method.invoke(Method.java:511)
06-28 12:53:41.025: E/AndroidRuntime(21461): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
06-28 12:53:41.025: E/AndroidRuntime(21461): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
06-28 12:53:41.025: E/AndroidRuntime(21461): at dalvik.system.NativeStart.main(Native Method)
06-28 12:55:16.568: I/Process(21461): Sending signal. PID: 21461 SIG: 9
06-28 12:55:16.728: E/Trace(21654): error opening trace file: No such file or directory (2)
06-28 13:04:53.271: D/dalvikvm(22238): GC_CONCURRENT freed 58K, 1% free 9003K/9092K, paused 4ms+5ms, total 34ms
06-28 13:04:53.271: D/dalvikvm(22238): WAIT_FOR_CONCURRENT_GC blocked 28ms
06-28 13:04:53.281: W/dalvikvm(22238): Unable to resolve superclass of Lcom/h2a/mtz/Factorpg; (47)
06-28 13:04:53.281: W/dalvikvm(22238): Link of class 'Lcom/h2a/mtz/Factorpg;' failed
06-28 13:04:53.281: E/dalvikvm(22238): Could not find class 'com.h2a.mtz.Factorpg', referenced from method com.h2a.mtz.Tools$1.onClick
06-28 13:04:53.281: W/dalvikvm(22238): VFY: unable to resolve const-class 19 (Lcom/h2a/mtz/Factorpg in Lcom/h2a/mtz/Tools$1;
06-28 13:04:53.281: D/dalvikvm(22238): VFY: replacing opcode 0x1c at 0x0004
06-28 13:04:53.301: D/dalvikvm(22238): GC_CONCURRENT freed 111K, 2% free 9295K/9484K, paused 3ms+2ms, total 24ms
06-28 13:04:54.392: D/AndroidRuntime(22238): Shutting down VM
06-28 13:04:54.402: W/dalvikvm(22238): threadid=1: thread exiting with uncaught exception (group=0x40a73930)
06-28 13:04:54.402: E/AndroidRuntime(22238): FATAL EXCEPTION: main
06-28 13:04:54.402: E/AndroidRuntime(22238): java.lang.NoClassDefFoundError: com.h2a.mtz.Factorpg
06-28 13:04:54.402: E/AndroidRuntime(22238): at com.h2a.mtz.Tools$1.onClick(Tools.java:24)
06-28 13:04:54.402: E/AndroidRuntime(22238): at android.view.View.performClick(View.java:4204)
06-28 13:04:54.402: E/AndroidRuntime(22238): at android.view.View$PerformClick.run(View.java:17355)
06-28 13:04:54.402: E/AndroidRuntime(22238): at android.os.Handler.handleCallback(Handler.java:725)
06-28 13:04:54.402: E/AndroidRuntime(22238): at android.os.Handler.dispatchMessage(Handler.java:92)
06-28 13:04:54.402: E/AndroidRuntime(22238): at android.os.Looper.loop(Looper.java:137)
06-28 13:04:54.402: E/AndroidRuntime(22238): at android.app.ActivityThread.main(ActivityThread.java:5041)
06-28 13:04:54.402: E/AndroidRuntime(22238): at java.lang.reflect.Method.invokeNative(Native Method)
06-28 13:04:54.402: E/AndroidRuntime(22238): at java.lang.reflect.Method.invoke(Method.java:511)
06-28 13:04:54.402: E/AndroidRuntime(22238): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
06-28 13:04:54.402: E/AndroidRuntime(22238): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
06-28 13:04:54.402: E/AndroidRuntime(22238): at dalvik.system.NativeStart.main(Native Method)
06-28 13:04:57.565: I/Process(22238): Sending signal. PID: 22238 SIG: 9
06-28 13:04:57.665: E/Trace(22430): error opening trace file: No such file or directory (2)
heres a copy of tools.java:
package com.h2a.mtz;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.Window;
import android.widget.Button;
public class Tools extends Activity {
@override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.tools);
Button factor=(Button)findViewById(R.id.factorpg);
factor.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent myintent2 = new Intent(Tools.this,Factorpg.class);
startActivity(myintent2);
}
});
}
}
Factorpg.java:
package com.h2a.mtz;
import android.os.Bundle;
import android.view.Menu;
import org.apache.cordova.*;
public class Factorpg extends DroidGap {
@override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.loadUrl("file:///android_asset/www/Factor.html");
}
@override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.factorpg, menu);
return true;
}
}
any help is greatly appreciated
Thanks way in advance
rapsong11