无法显示自定义帖子列表

我正在做一个项目，需要显示自定义帖子的列表，就像使用类别一样。我在函数中创建了一个自定义的post类型（称为“videor”）。php：

function register_rc() { // A unique name for our function
$labels = array( // Used in the WordPress admin
    \'name\' => _x(\'Videoer\', \'post type general name\'),
    \'singular_name\' => _x(\'Video\', \'post type singular name\'),
    \'add_new\' => _x(\'Add New\', \'Video\'),
    \'add_new_item\' => __(\'Add New Video\'),
    \'edit_item\' => __(\'Edit Video\'),
    \'new_item\' => __(\'New Video\'),
    \'view_item\' => __(\'View Video \'),
    \'search_items\' => __(\'Search Videos\'),
    \'not_found\' =>  __(\'Nothing found\'),
    \'not_found_in_trash\' => __(\'Nothing found in Trash\')
);
$args = array(
    \'labels\' => $labels, // Set above
    \'public\' => true, // Make it publicly accessible
    \'hierarchical\' => true, // No parents and children here
    \'menu_position\' => 5, // Appear right below "Posts"
    \'has_archive\' => \'resources\', // Activate the archive
    \'supports\' => array(\'title\',\'editor\',\'comments\',\'thumbnail\',\'custom-fields\'),
    \'taxonomies\' => array(\'category\', \'post_type\'),
    \'public\' => true,
    \'show_ui\' => true,
    \'exclude_from_search\' => true,
    \'query_var\' => true,
);

register_post_type( \'videoer\', $args );

}

这在wordpress管理区域中运行良好，我也可以正确显示帖子。我给每篇文章都加了一个类别，叫做videoer （与costum post类型的名称相同）。现在如果我想显示该类别下的所有帖子videoer 我什么也得不到。

我已经在我的video-category.php:

    <?php $loop = new WP_Query( array( \'post_type\' => \'videoer\', \'posts_per_page\' => 100   )  ); ?>
   <?php while ( $loop->have_posts() ) : $loop->the_post(); ?>
   <?php the_post_thumbnail(); ?>
   <h3><?php the_title() ?></h3>
   <a href="<?php the_permalink() ?>">Read More</a>

   <?php endwhile; ?>

欢迎任何建议！

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