android countdown force to close error
<p>I have this code:     </p>

<pre><code>import android.app.Activity;     
import android.os.Bundle;     
import android.os.CountDownTimer;     
import android.widget.TextView;       

 public class MActivity extends Activity {      

 TextView start;    

 public void onCreate(Bundle savedInstanceState) {    

      super.onCreate(savedInstanceState);    
      setContentView(R.layout.main);    

      start = (TextView)findViewById(R.id.start_me);    

        CountDownTimer aCounter = new CountDownTimer(100000 , 1000) {    
              public void onTick(long millisUntilFinished) {    
                  start.setText("Remaining: " + millisUntilFinished / 1000);    
              }    

                public void onFinish() {    
                    start.setText("Finished");     
                }     
             };      
           aCounter.start();     
   }     
 }    
</code></pre>

<p>But when I run it, it crashes with force to close error. Can you help me that where can be the problem?  </p>
