The content of the adapter has changed but ListView did not receive a notification.
1. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread.
2. Make sure your adapter calls notifyDataSetChanged() when its content changes.
AsyncTask doBackground() 안에서 UI 관련 handling 하는 부분이 있는지 확인 해보세요.
잘 되는데 어떤 경우(데이터가 변경되었거나 아니거나)에 문제가 발생하는지 역시 확인 해보세요.
i hope this may help you.