wordpress报Supplied nav_menu_item value missing property错误怎么解决

打开wordpress后台点击外观-自定义出现以下错误：

Fatal error: Uncaught Exception: Supplied nav_menu_item value missing property: description

解决办法很简单，只要在主题functions.php中新增以下代码：

add_filter('wp_get_nav_menu_items', 'my_wp_get_nav_menu_items', 10, 3);
function my_wp_get_nav_menu_items($items, $menu, $args) {
  foreach($items as $key => $item)
  $items[$key]->description = '';
  return $items;
}