can't launch simple android application with smack

Good evening.
First of all, i'm sorry for my bad english.

Second, i create a simple android application from templates (eclipse) and wrote some strings:

package com.example.client;  import org.jivesoftware.smack.ConnectionConfiguration;import org.jivesoftware.smack.XMPPConnection;  import android.support.v7.app.ActionBarActivity;import android.app.Activity;import android.os.Bundle;  publicclass MainActivity extends Activity {          private ConnectionConfiguration config;    private XMPPConnection connection;       private String server = "talk.google.com";    private String service = "gmail.com";    private String login = "";    private String password = "";    privateint port = 5222;             @Override          protectedvoid onCreate(Bundle savedInstanceState) {                    super.onCreate(savedInstanceState);                    setContentView(R.layout.activity_main);                      config = new ConnectionConfiguration(server, port, service);                    config.setSASLAuthenticationEnabled(true);                    config.setSecurityMode(ConnectionConfiguration.SecurityMode.enabled);                    connection = new XMPPConnection(config);                   }  } 

i require smack.jar for this application. i do test at the virtual machine and this app close every time with error. i can't understand why it happed