mambax7 / gbook

header.php

<?php
/**
 * ****************************************************************************
 *  GBOOK - MODULE FOR XOOPS
 *  Copyright (c) 2007 - 2012
 *  Ingo H. de Boer (http://www.winshell.org)
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  You may not change or alter any portion of this comment or credits
 *  of supporting developers from this source code or any supporting
 *  source code which is considered copyrighted (c) material of the
 *  original comment or credit authors.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  ---------------------------------------------------------------------------
 *
 * @copyright       Ingo H. de Boer (http://www.winshell.org)
 * @license         GNU General Public License (GPL)
 * @package         GBook
 * @author          Ingo H. de Boer (idb@winshell.org)
 *
 * ****************************************************************************
 */

require_once __DIR__ . '/../../mainfile.php';

$GLOBALS['xoopsOption']['xoops_module_header'] = '<link rel="stylesheet" type="text/css" href="assets/css/gbook.css" >';

$pathIcon16 = \Xmf\Module\Admin::iconUrl('', 16);

The type Xmf\Module\Admin was not found. Maybe you did not declare it correctly or list all dependencies?

$pathIcon32 = \Xmf\Module\Admin::iconUrl('', 32);