xml class not found in xml helper in cakephp

Question

im getting this error:

Fatal error: Class 'Xml' not found in C:\xampp\htdocs\wifidrivescanportal\app\View\Helper\XmlHelper.php on line 88

What I did is I imported the library XML class in my XML helper via these line of code:

XmlHelper.php

App::import('Core', array('Xml', 'Set'));

But still I get the same error. I have my xml library stored in this path:

C:\xampp\htdocs\wifidrivescanportal\app\Lib\xml.php

BTW, inside my xml.php, ive checked that it is this class that exists:

class XmlNode extends Object {
// ....
}

Well, to make the story short, I need to utilize "serialize" of xml in cakephp. Dunno if im doing this right in the first place. Thanks for the help in advanced.

** Edit **

Ive also tried importing XML in my controller:

App::import('Xml');

yet still in the same situation

Answer 1

Add App::uses('Xml', 'Utility');.

Answer 2

Try the following in your XmlHelper:

App::uses('Xml', 'Lib');