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POGetting error "Caused by: java.lang.NoClassDefFoundError:" but the class is existing
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copied!<p>I am trying to figureout what is wrong with following code that is causing "class not found" exception but I am not able to solved it. </p> <p>I am starting an activity that is extending MapActivity from mapquest-android-sdk-1.0.5.jar map quest library. </p> <pre><code> public void onRoutePlanButtonClick(View v) { start = ((EditText) findViewById(R.id.start)).getText().toString(); destination = ((EditText) findViewById(R.id.destination)).getText() .toString(); Driver driver = new Driver(); driver.setStart(start); driver.setDestination(destination); Intent intent = new Intent(this, DriverMap.class); startActivity(intent); } </code></pre> <p>the class DriverMap exists in com.thumbup.driver but the following code is causing the error</p> <pre><code>Intent intent = new Intent(this, DriverMap.class); </code></pre> <p>NOTES: </p> <ol> <li>I made sure the map quest lib is on the correct path</li> <li>When I call another Activity then it works without any problem</li> <li>DriverMap extends ThumbUpMap implements ThumbUpLocationProvider</li> <li>The activity that is calling DriverMap is storing some data locally, using SharedPreferences</li> <li>I am using Android 2.3.3</li> </ol> <p>Error from LogCat (adroid SDK):</p> <pre><code>06-03 14:29:24.558: E/dalvikvm(1979): Could not find class 'com.thumbup.driver.DriverMap', referenced from method com.thumbup.driver.Journey.onRoutePlanButtonClick 06-03 14:29:24.558: W/dalvikvm(1979): VFY: unable to resolve const-class 58 (Lcom/thumbup/driver/DriverMap;) in Lcom/thumbup/driver/Journey; 06-03 14:29:24.558: D/dalvikvm(1979): VFY: replacing opcode 0x1c at 0x0037 06-03 14:29:24.558: D/dalvikvm(1979): VFY: dead code 0x0039-003f in Lcom/thumbup/driver/Journey;.onRoutePlanButtonClick (Landroid/view/View;)V 06-03 14:29:38.238: D/AndroidRuntime(1979): Shutting down VM 06-03 14:29:38.238: W/dalvikvm(1979): threadid=1: thread exiting with uncaught exception (group=0x40015578) 06-03 14:29:38.246: E/AndroidRuntime(1979): FATAL EXCEPTION: main 06-03 14:29:38.246: E/AndroidRuntime(1979): java.lang.IllegalStateException: Could not execute method of the activity 06-03 14:29:38.246: E/AndroidRuntime(1979): at android.view.View$1.onClick(View.java:2154) 06-03 14:29:38.246: E/AndroidRuntime(1979): at android.view.View.performClick(View.java:2538) 06-03 14:29:38.246: E/AndroidRuntime(1979): at android.view.View$PerformClick.run(View.java:9152) 06-03 14:29:38.246: E/AndroidRuntime(1979): at android.os.Handler.handleCallback(Handler.java:587) 06-03 14:29:38.246: E/AndroidRuntime(1979): at android.os.Handler.dispatchMessage(Handler.java:92) 06-03 14:29:38.246: E/AndroidRuntime(1979): at android.os.Looper.loop(Looper.java:123) 06-03 14:29:38.246: E/AndroidRuntime(1979): at android.app.ActivityThread.main(ActivityThread.java:3687) 06-03 14:29:38.246: E/AndroidRuntime(1979): at java.lang.reflect.Method.invokeNative(Native Method) 06-03 14:29:38.246: E/AndroidRuntime(1979): at java.lang.reflect.Method.invoke(Method.java:507) 06-03 14:29:38.246: E/AndroidRuntime(1979): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842) 06-03 14:29:38.246: E/AndroidRuntime(1979): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) 06-03 14:29:38.246: E/AndroidRuntime(1979): at dalvik.system.NativeStart.main(Native Method) 06-03 14:29:38.246: E/AndroidRuntime(1979): Caused by: java.lang.reflect.InvocationTargetException 06-03 14:29:38.246: E/AndroidRuntime(1979): at java.lang.reflect.Method.invokeNative(Native Method) 06-03 14:29:38.246: E/AndroidRuntime(1979): at java.lang.reflect.Method.invoke(Method.java:507) 06-03 14:29:38.246: E/AndroidRuntime(1979): at android.view.View$1.onClick(View.java:2149) 06-03 14:29:38.246: E/AndroidRuntime(1979): ... 11 more 06-03 14:29:38.246: E/AndroidRuntime(1979): Caused by: java.lang.NoClassDefFoundError: com.thumbup.driver.DriverMap 06-03 14:29:38.246: E/AndroidRuntime(1979): at com.thumbup.driver.Journey.onRoutePlanButtonClick(Journey.java:32) 06-03 14:29:38.246: E/AndroidRuntime(1979): ... 14 more </code></pre> <p><strong>When I swtiched to Android 2.3.3, it is working! but not with 4.2.2</strong></p>

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