Передача файлов с помощью smack в приложениях для Android.

Эта ошибка заносится в журнал.

from='kutbi1@360degree/Smack' to='akash@360degree/Smack' type='error' id='hK1L6-5'>
<si xmlns='http://jabber.org/protocol/si' id='jsi_191216212994140179' mime-type='image/png' profile='http://jabber.org/protocol/si/profile/file-transfer'>
<file xmlns='http://jabber.org/protocol/si/profile/file-transfer' name='this_old_house.png' size='12623'>
<desc>You won&apos;t believe this!</desc></file>
<feature xmlns='http://jabber.org/protocol/feature-neg'>
<x xmlns='jabber:x:data' type='form'><field var='stream-method' type='list-multi'>
 <option><value>http://jabber.org/protocol/bytestreams</value></option>
 <option><value>http://jabber.org/protocol/ibb</value></option>
</field>
 </x>
</feature>
</si>
<error code='503' type='cancel'>
<service-unavailable xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>
</error></iq>

Здесь я использую следующий код

    ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(Main.connection);
    if (sdm == null)
        sdm = new ServiceDiscoveryManager(Main.connection);
    sdm.addFeature("http://jabber.org/protocol/disco#info");
    sdm.addFeature("jabber:iq:privacy");

   FileTransferNegotiator.setServiceEnabled(Main.connection, true);
   FileTransferManager manager = new FileTransferManager(Main.connection);
  OutgoingFileTransfer transfer = manager.createOutgoingFileTransfer(id
           + "/Smack");

   Log.i("transfere file", "outgoingfiletransfere is created");
    try{
        //OutgoingFileTransfer.setResponseTimeout(60000);
        transfer.sendFile(new File(txt_file.getText().toString()), "You won't believe this!");

        if (transfer.getStatus().equals(Status.cancelled)
                || transfer.getStatus().equals(Status.refused)) {
                Log.d("Cancel", ""+transfer.getError());
                System.out.println("Cancelled!!! " + transfer.getError());
            }

        Log.i("transfere file", "sending file");
        Log.d("FTTRY", "m in ft TRY");
        btn_transfer.setText("Browse");
        txt_file.setText("click on browse n Select File");
        send_flag = true;
    }catch (Exception e) {
        Log.d("FTCATCH", "m in ft catch");
        btn_transfer.setText("BrowseC");
        send_flag = true;
    }

    while(!transfer.isDone()) {
        try{
           Thread.sleep(1000);
        }catch (Exception e) {
        }
          Log.i("transfere file", "sending file status "
                      + transfer.getStatus() + "progress: "
                      + transfer.getProgress());
       if(transfer.getStatus().equals(Status.error)) {
             System.out.println("ERROR!!! " + transfer.getError());
       } else {
             System.out.println(transfer.getStatus());
             System.out.println(transfer.getProgress());
             Log.d("PROG", "m in ft progress");
       }
      try{
       Thread.sleep(1000);
      }catch (Exception e) {
    }
 }