Illegal Argument Exception when parsing XML file

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http://stackoverflow.com – I am trying to pull the XML file which can be seen here: http://feeds.pcworld.com/pcworld/latestnews This is my MainActivity public class MainActivity extends ListActivity { ArrayAdapter<Item> adapter; List<Item>items;//Holds item objects containing info relating to element pulled from XML file. Item item; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //initialize variables items = new ArrayList<Item>(); new PostTask().execute(); adapter= new ArrayAdap (HowTos)