Androidde FTPden dosya indirme kodlarında hata nerde? ...

Merhaba ben ftpden dosya indirmek istiyorum ama bir türlü yapamadım. bir sürü hata veriyor. hatalarım nedir nasıl çözerim cevap verirseniz çok sevineceğim.

hata

1-eclipsede androidprojesi oluşturdum

2-internet,telefon durumu ve sdkart yazma izinlerini manifeste ekledim.

3-apache commons-net kütüphanesini projede lib klasörüne kopyaladım. ve user lib ekledim

ve tüm kodda böyle

[code]

package com.example.deneme10;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.BufferedOutputStream;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.view.Menu;
import android.view.MenuItem;
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;

public class MainActivity extends Activity {
    private ProgressDialog dialog=new ProgressDialog(MainActivity.this);
    
    
    
    public class BackgroundTask extends AsyncTask<Void, Void, Void> {
        
          @Override
          protected void onPreExecute() {
             super.onPreExecute();
             dialog.setMessage("Yükleniyor");
             dialog.show();
          }
    
          @Override
          protected Void doInBackground(Void... params) {
              
              
              String server = "site adresim";
              int port = 21;
              String user = "kullanıcı adım";
              String pass = "şifrem";
       
              FTPClient ftpClient = new FTPClient();
              try {
       
                  ftpClient.connect(server, port);
                  ftpClient.login(user, pass);
                  ftpClient.enterLocalPassiveMode();
                  ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
       
                  // APPROACH #1: using retrieveFile(String, OutputStream)
                  String yol = Environment.getExternalStorageDirectory().toString();
                  String remoteFile1 = "/video.mp4";
                  File downloadFile1 = new File(yol+"/video.mp4");
                  OutputStream outputStream1 = new BufferedOutputStream(new FileOutputStream(downloadFile1));
                  boolean success = ftpClient.retrieveFile(remoteFile1, outputStream1);
                  outputStream1.close();
       
                  if (success) {
                      System.out.println("File #1 has been downloaded successfully.");
                  }
       
                  // APPROACH #2: using InputStream retrieveFileStream(String)
                  String yol2 = Environment.getExternalStorageDirectory().toString();
                  String remoteFile2 = "/sarki.mp3";
                  File downloadFile2 = new File(yol2+"/sarki.mp3");
                  OutputStream outputStream2 = new BufferedOutputStream(new FileOutputStream(downloadFile2));
                  InputStream inputStream = ftpClient.retrieveFileStream(remoteFile2);
                  byte[] bytesArray = new byte[4096];
                  int bytesRead = -1;
                  while ((bytesRead = inputStream.read(bytesArray)) != -1) {
                      outputStream2.write(bytesArray, 0, bytesRead);
                  }
       
                  success = ftpClient.completePendingCommand();
                  if (success) {
                      System.out.println("File #2 has been downloaded successfully.");
                  }
                  outputStream2.close();
                  inputStream.close();
       
              } catch (IOException ex) {
                  System.out.println("Error: " + ex.getMessage());
                  ex.printStackTrace();
              } finally {
                  try {
                      if (ftpClient.isConnected()) {
                          ftpClient.logout();
                          ftpClient.disconnect();
                      }
                  } catch (IOException ex) {
                      ex.printStackTrace();
                  }
              }
          
              
             return null;
          }
    
          @Override
          protected void onPostExecute(Void result) {
             super.onPostExecute(result);
             dialog.dismiss();
          }
    
          @Override
          protected void onProgressUpdate(Void... values) {
             super.onProgressUpdate(values);
          }
    
          @Override
          protected void onCancelled(Void result) {
             super.onCancelled(result);
          }
    
       }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        new BackgroundTask().execute();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

[/code]