我在我的WP admin自定义帖子列表页面中收到以下警告(wp-admin/edit.php?post_type=video)

Warning: Illegal offset type in isset or empty in wp-includes/post.php on line 817

我正在运行WordPress v3。1.3（最新版本）。第817行为in the function get_post_type_object() . 搜索会发现以下线程：

• http://wordpress.org/support/topic/warning-illegal-offset-type-in-isset-or-empty

• http://wordpress.org/support/topic/error-when-searching-for-posts-in-the-backend-illegel-offset

  https://core.trac.wordpress.org/ticket/12704 - 但现在已经解决了（我运行的是v3.1.3），其中最后一篇文章写道：

  基本上，你有一个插件错误地注册了一个帖子类型，然后核心抱怨。据我所知，这不是核心缺陷。

  我确实有一个插件（我自己的）注册了一个帖子类型，但我认为它做得很正确。

  这是代码。（请注意，我最初称这些“视频”帖子，但后来将前端描述重命名为“Training Module”，但保留了原来的帖子类型名称）。

  function video_register() {
      $labels = array(
          \'name\' => _x(\'Modules\', \'post type general name\'),
          \'singular_name\' => _x(\'Training Module\', \'post type singular name\'),
          \'add_new\' => _x(\'Add New Module\', \'video item\'),
          \'add_new_item\' => __(\'Add New Training Module\'),
          \'edit_item\' => __(\'Edit Training Module\'),
          \'new_item\' => __(\'New Training Module\'),
          \'view_item\' => __(\'View Training Module\'),
          \'search_items\' => __(\'Search Training Modules\'),
          \'not_found\' =>  __(\'No Training Modules found\'),
          \'not_found_in_trash\' => __(\'No Training Modules found in Trash\'),
          \'parent_item_colon\' => \'\'
      );
      $args = array(
          \'labels\' => $labels,
          \'public\' => true,
          \'publicly_queryable\' => true,
          \'show_ui\' => true,
          \'query_var\' => true,
          \'has_archive\' => \'video\',
          \'menu_icon\' => \'video16x16.png\',
          \'rewrite\' => array(\'slug\'=>\'training\',\'with_front\'=>false),
          \'capability_type\' => \'post\',
          \'hierarchical\' => false,
          \'menu_position\' => \'15\',
          \'supports\' => array(\'title\',\'author\',\'editor\',\'custom-fields\',\'revisions\',\'comments\',\'trackbacks\'),
          \'taxonomies\' => array(\'category\', \'post_tag\')
        );
      register_post_type( \'video\' , $args );
  }
  add_action(\'init\', \'video_register\');
  

  有什么问题吗？为什么我会看到警告？

add_filter( \'pre_get_posts\', \'my_get_posts\' );

//events don\'t exists
function my_get_posts( $query ) {
    $query->set( \'post_type\', array( \'post\', \'page\', \'events\' ) );
    return $query;
}

/*$query->set( \'post_type\', array ( \'product\' ) );*/
$query->set( \'post_type\', \'product\' );