Error: the channel is irreparably broken and will be disposed of! (Phonegap)

I am working on PhoneGap, and when I launch my application, I received an error message. The channel is irreparably broken and will be deleted! , and my application closes. Here is my code:

public class DossiuerActivity extends DroidGap {
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    super.loadUrl("file:///android_asset/www/menu.html");
  }
}

Please tell me what I'm doing wrong.