Warning: require_once(class/class_pager.php): failed to open stream: No such file or directory in C:\xampp\htdocs\productinfo\inc\inc_product_list2.php on line 2

Fatal error: require_once(): Failed opening required 'class/class_pager.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\productinfo\inc\inc_product_list2.php on line 2