Error: [2] require_once(Zend/Loader/Autoloader.php) [function.require-once]: failed to open stream: No such file or directory
/var/www/vhosts/localhost/httpdocs/public.:./var/www/vhosts/localhost/httpdocs/public/../library:./var/www/vhosts/localhost/httpdocs/public/../model:.
defined('SITE_ROOT') ? null : define('SITE_ROOT',$_SERVER['DOCUMENT_ROOT']);
$includePath[] = '.';
$includePath[] = '.' . SITE_ROOT . '/../library';
$includePath[] = '.' . SITE_ROOT . '/../model';
$includePath[] = get_include_path();
$includePath = implode(PATH_SEPARATOR,$includePath);
set_include_path($includePath);
require_once 'Zend/Loader/Autoloader.php';
Please help me setting properly set_include_path.