title: java.lang.NoClassDefFoundError exception
body: <p>hi all my app is getting this exception</p>
  
  <pre><code>  09-03 12:11:10.677: E/AndroidRuntime(31704): FATAL EXCEPTION: main
    09-03 12:11:10.677: E/AndroidRuntime(31704): java.lang.NoClassDefFoundError:       mPay2Park.zwl.com.StartNow$1
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at mPay2Park.zwl.com.StartNow.&lt;init&gt;(StartNow.java:449)
  09-03 12:11:10.677: E/AndroidRuntime(31704):    at java.lang.Class.newInstanceImpl(Native Method)
  09-03 12:11:10.677: E/AndroidRuntime(31704):    at java.lang.Class.newInstance(Class.java:1319)
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1882)
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
    09-03 12:11:10.677: E/AndroidRuntime(31704):  at android.app.ActivityThread.access$600(ActivityThread.java:127)
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
  09-03 12:11:10.677: E/AndroidRuntime(31704):    at android.os.Handler.dispatchMessage(Handler.java:99)
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at android.os.Looper.loop(Looper.java:137)
  09-03 12:11:10.677: E/AndroidRuntime(31704):    at android.app.ActivityThread.main(ActivityThread.java:4441)
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at java.lang.reflect.Method.invokeNative(Native Method)
    09-03 12:11:10.677: E/AndroidRuntime(31704):  at java.lang.reflect.Method.invoke(Method.java:511)
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
   09-03 12:11:10.677: E/AndroidRuntime(31704):   at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>and the code in the activity which get the exception at this lines </p>
  
  <pre><code>        OnWheelScrollListener scrolledListener = new OnWheelScrollListener() {
       public void onScrollingStarted(WheelView wheel) {
           wheelScrolled = true;
       } 
       public void onScrollingFinished(WheelView wheel) {
           wheelScrolled = false;
       }
  }; 
  private OnWheelChangedListener days_changedListener = new OnWheelChangedListener() {
        public void onChanged(WheelView wheel, int oldValue, int newValue) {
            if (!wheelScrolled) {
                ChossenTime = duration_optionsList.get(newValue);
              }
        }
  }; 
  </code></pre>
  
  <p>CAN anyone help me on it please ,this app was working perfectly and once got this exception  </p>