Parsing xml files in UIVIew

I am trying to parse 3 xml files in a UIView class, and set the text of a label to a nodeid, however I am getting a SIGNAL SIGBRT error, does anyone have a solution for this?

- (void)viewDidLoad
{

    [super viewDidLoad];

    xmlParser = [[XMLParser alloc] loadXMLByURL:@"http://ift.tt/1yYtYF4"];
    xmlParser1 = [[Xemel alloc] loadXMLByURL:@"http://vmhost04-vm2/nodeRepresentation"];
    xmlParser2 = [[Xmelia alloc] loadXMLByURL:@"http://ift.tt/1xHwtsZ"];

    VMdelivered *nodes = [[xmlParser nodes] objectAtIndex:1];
    VMdelivered *nodes1 = [[xmlParser1 nodes] objectAtIndex:1];
    VMdelivered *nodes2 = [[xmlParser2 nodes] objectAtIndex:1];

    label1.text = [nodes1 nodeid];



}