Code Challenge trouble

I'm having some serious trouble with the 2 part of Code Challenge for Using Intents to Display and Share...

The stipulation for the second part of this code challenge is this:

The member variable 'mUrls' is filled with a few URLs. In the 'onListItemClick()' method, declare and start an Intent that causes the URL tapped on to be viewed in the browser. Hint: The String URL needs to be set as the data for the Intent as a Uri object.

Here is the supplied code:

import android.os.Bundle; import android.widget.ArrayAdapter; import android.view.View; import android.view.ListView; import android.content.Intent; import android.net.Uri;

public class CustomListActivity extends ListActivity {

protected String[] mUrls = { "http://www.teamtreehouse.com", "http://developer.android.com", "http://www.github.com" };

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_custom_list);

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mUrls);
    setListAdapter(adapter);
}

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
    // Add code here!
}

}

Here's what I've added in the onListItemClick method:

@Override protected void onListItemClick(ListView l, View v, int position, long id) { // Add code here! super.onListItemClick(l, v, position, id);

  String aUrl;
  Uri challenge = intent.getData();
  Intent intent = new Intent(aUrl);

  intent.setData(Uri.parse(mUrls));
}

}

Here are the error codes I get with this one:

./CustomListActivity.java:27: cannot find symbol symbol : variable intent location: class CustomListActivity Uri challenge = intent.getData(); ^ ./CustomListActivity.java:30: parse(java.lang.String) in android.net.Uri cannot be applied to (java.lang.String[]) intent.setData(Uri.parse(mUrls)); ^ 2 errors

Where am I going wrong? Can someone give me a big hint, because I am lost? BTW, this is just the latest iteration of this attempt. There are many others.