Android :: Get Contacts Groups / Source Not Found Error

Problem 1.
I have this class:
public class ContactGroups {
// Form an array specifying which columns to return.
String[] projection = new String[] { Contacts.Groups._ID,
Contacts.Groups._COUNT, Contacts.Groups.NAME, Contacts.Groups.NOTES };

public Cursor getList(Activity act) {
Uri contacts = Contacts.Groups.CONTENT_URI;
// using the debugger code kills here
Cursor managedCursor = act.managedQuery(contacts, projection,
null, null, null );
return managedCursor;
} public ArrayList<String> getColumnData(Cursor cur) { ArrayList<String> aa = new ArrayList<String>();
if (cur.moveToFirst()) { String name;
String notes;
int nameColumn = cur.getColumnIndex(Contacts.Groups.NAME);
int notesColumn = cur.getColumnIndex(Contacts.Groups.NOTES);
do {
// Get the field values name = cur.getString(nameColumn);
notes = cur.getString(notesColumn);
aa.add(name);
// Do something with the values. } while (cur.moveToNext())
} return aa;
} }

I am calling this as:
ContactGroups mGrp= new ContactGroups();
final ArrayAdapter<String> aa;
aa = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,mGrp.getColumnData(mGrp.getList(this)));
myListView.setAdapter(aa);

And having:
<uses-permission android:name="android.permission.READ_CONTACTS"></uses-permission>
<uses-permission android:name="android.permission.WRITE_CONTACTS"></uses-permission>

I get a Source not found error and a Logcat error
ERROR/DatabaseUtils(617): java.lang.IllegalArgumentException: Invalid column _count

Problem 2.
Where do I create manually contact groups?