Codeigniter Flexi Auth library loads sometimes - codeigniter-2

Question

I am working on the log in system for a site using Flexi Auth in Codeigniter V 2.1.4. I am trying to pass a user's log in status to a menu that changes dynamically depending whether a user is logged in or not. This is the code i am using:
public function create_page($pgName = 'home')
{
$this->config->load('tera_site', TRUE);
$this->load->library('flexi_auth_lite');
// Cunstruct Page data
$data['pgName'] = $pgName;
if ($this->session->userdata('admin') === FALSE){$data['admin'] = 0;}else{$data['admin'] = $this->session->userdata('admin');}
$data['siteTitle'] = $this->config->item('siteTitle','tera_site');
// This is the line the Error is thrown from:
$data['loggedIn'] = $this->flexi_auth_lite->is_logged_in();
$data['header'] = $this->load->view('include/header', $data, TRUE);
$data['pages'] = $this->config->item('pages','tera_site');
$data['footer'] = $this->load->view('include/footer', False, TRUE);
$data['sideBar'] = $this->load->view('include/side_bar_view', $data, TRUE);
$this->load->model('page_model');
$data['pgData'] = $this->page_model->getPage($pgName);
// load the Catcha Library
$this->load->library('captcha_my');
if($data['pgData']['Captcha'] = 1) {
$data['Captcha'] = $this->captcha_my->createCaptcha();
} else if ($this->session->userdata('captchaCheck') == true) {
$data['Captcha'] = $this->captcha_my->createCaptcha();
}
return $data;
This is the error:
Severity: Notice
Message: Undefined property: Main::$flexi_auth_lite
Fatal error: Call to a member function is_logged_in() on a non-object
The code worked at one time, but even when it did it threw the same error when i called the function is_admen() from flexi_auth. Flexi_auth.php and Flexi_auth_lite.php are in application/libraries directory.

Answer 1

if you look into the demo files, there is a controller 'auth_lite.php'
it says
// IMPORTANT! This global must be defined BEFORE the flexi auth library is loaded!
// It is used as a global that is accessible via both models and both libraries, without it, flexi auth will not work.
$this->auth = new stdClass;
// Load 'lite' flexi auth library by default.
// If preferable, functions from this library can be referenced using 'flexi_auth' as done below.
// This prevents needing to reference 'flexi_auth_lite' in some files, and 'flexi_auth' in others, everything can be referenced by 'flexi_auth'.
$this->load->library('flexi_auth_lite', FALSE, 'flexi_auth');