Laravel Asgard CMS Menu with Custom Classes

I'm using Asgard CMS in one of my prjects.

I'm trying to print a menu with custom classes.

By defaut, {{ Menu::get('main') }} prints out the main menu with Bootstrap classes. But, I want to use different classes because of my theme.

In their documentation, they say that by creating a Presenteryou can do this. However, when I create a Presenter named CustomPresenter.php with a class named CustomPresenter that extends Pingpong/menus/Presenters/Presenter.php, place it under /vendor/xxx/ and calling it by {{ Menu::render('main', 'XXX/CustomPresenter') }}in my blade, Laravel gives Class 'XXX\CustomPresenter' not found error.

Here is the code I use in CustomPresenter:

namespace XXX;

use Pingpong\Menus\Presenters\Presenter;

class CustomPresenter extends Presenter
{
    /**
     * {@inheritdoc }
     */
    public function getOpenTagWrapper()
    {
        return  PHP_EOL . '<section class="top-bar-section">' . PHP_EOL;
    }

    /**
     * {@inheritdoc }
     */
    public function getCloseTagWrapper()
    {
        return  PHP_EOL . '</section>' . PHP_EOL;
    }

    /**
     * {@inheritdoc }
     */
    public function getMenuWithoutDropdownWrapper($item)
    {
        return '<li'.$this->getActiveState($item).'><a href="'. $item->getUrl() .'">'.$item->getIcon().' '.$item->title.'</a></li>';
    }

    /**
     * {@inheritdoc }
     */
    public function getActiveState($item)
    {
        return \Request::is($item->getRequest()) ? ' class="active"' : null;
    }

    /**
     * {@inheritdoc }
     */
    public function getDividerWrapper()
    {
        return '<li class="divider"></li>';
    }

    /**
     * {@inheritdoc }
     */
    public function getMenuWithDropDownWrapper($item)
    {
        return '<li>
                <a href="#" class="sf-with-ul">
                 '.$item->getIcon().' '.$item->title.'
                </a>
                <ul style="display: none;">
                  '.$this->getChildMenuItems($item).'
                </ul>
              </li>' . PHP_EOL;
        ;
    }
}

via Chebli Mohamed