我正在尝试为自定义Wordpress主题构建category.php页面。理想情况下，页面会找到所有类别的帖子，然后抓住该类别的粘贴帖子，如果至少有两个，它会在顶部显示它们（如果下面重复这些相同的帖子就没问题。）
这是我到目前为止构建的页面。它可以无误地收集所有结果，但试图找到最近的两个胶粘物的嵌套循环失败。我收到错误：
“警告：尝试在第22行的C：\ dev \ xampp \ htdocs \ wordpress \ wp-content \ themes \ ampersand \ category.php中分配非对象的属性”
如何修复此循环？ （我已经包含了一个github要点，以便更容易阅读，category page for Wordpress theme in development）
<?php // Category Page Content Start ?>
<div id="content">
<main id="main" class="category-page" role="main" itemscope itemprop="mainContentOfPage" itemtype="http://schema.org/Periodical">
<h1><?php single_cat_title(); ?></h1>
<?php // Find all posts for the queried category ?>
<?php $catID = get_queried_object_id();
$args = array( 'numberposts' => -1, 'posts_per_page' => 20,
'cat' => $catID, 'post-type' => 'post' );
$query = new WP_query( $args ); $count = 0;
if ($query -> have_posts()) : ?>
<section class="featured">
<?php // Find the most recent sticky posts for this category; if at least 2, post them seperately ?>
<?php $sticky = get_option( 'sticky_posts' );
$findsticky = array( 'post__in' => $sticky, 'numberposts' => 2 );
$stickyposts = get_posts( $findsticky ); if ($stickyposts -> count = 2) :
foreach ($stickyposts as $post) : $post -> the_post(); ?>
<article class="featured-article" itemtype="http://schema.org/Article">
<meta itemprop="wordCount" content="<?php echo word_count(); ?>">
<figure class="thumbnail">
<div class="image-wrapper">
<a href="<?php the_permalink() ?>">
<img src="<?php the_post_thumbnail_url( 'thumb-small' ); ?>">
</a>
</div>
</figure>
<section>
<h2 class="headline">
<a href="<?php the_permalink() ?>" title="<?php the_title_attribute(); ?>" itemprop="name"><?php the_title(); ?></a>
</h2>
<span class="byline">
<?php $check = get_field( 'contributor' );
if ($check):?>
<span class="contributor" itemprop="author" itemtype="http://schema.org/Person">
<a href=""><?php the_field( 'contributor' ); ?></a>
</span>
<?php else: ?>
<span class="contributor" itemprop="author" itemtype="http://schema.org/Person"><?php the_author_posts_link(); ?></span>
<?php endif; ?>
</span>
<?php $check = get_field( 'description' );
if ($check): ?>
<span class="description"><?php the_field( 'description' ); ?></span>
<?php else: ?>
<span class="excerpt"><?php the_excerpt(); ?></span>
<?php endif; ?>
</section>
</article>
<?php endforeach; endif; ?>
</section>
<section class="all-results">
<?php while ($query -> have_posts()) : $query -> the_post(); $count++; ?>
<article class="<?php echo 'article-'.$count; ?>" itemtype="http://schema.org/Article">
<meta itemprop="wordCount" content="<?php echo word_count(); ?>">
<figure class="thumbnail">
<div class="image-wrapper">
<a href="<?php the_permalink() ?>">
<img src="<?php the_post_thumbnail_url( 'thumb-small' ); ?>">
</a>
</div>
</figure>
<section>
<h2 class="headline">
<a href="<?php the_permalink() ?>" title="<?php the_title_attribute(); ?>" itemprop="name"><?php the_title(); ?></a>
</h2>
<span class="byline">
<?php $check = get_field( 'contributor' );
if ($check):?>
<span class="contributor" itemprop="author" itemtype="http://schema.org/Person">
<a href=""><?php the_field( 'contributor' ); ?></a>
</span>
<?php else: ?>
<span class="contributor" itemprop="author" itemtype="http://schema.org/Person"><?php the_author_posts_link(); ?></span>
<?php endif; ?>
</span>
<?php $check = get_field( 'description' );
if ($check): ?>
<span class="description"><?php the_field( 'description' ); ?></span>
<?php else: ?>
<span class="excerpt"><?php the_excerpt(); ?></span>
<?php endif; ?>
</section>
</article>
<?php endwhile; ?>
</section>
<div class="pagination-bottom">
<?php if( get_next_posts_link() ) :
previous_posts_link( 'Older Posts' );
endif; ?>
<?php if( get_next_posts_link() ) :
next_posts_link( 'Newer Posts', 0 );
endif; ?>
</div>
<?php else : ?>
<p><?php _e( 'Sorry, no posts matched your criteria.' ); ?></p>
<?php endif; wp_reset_postdata(); ?>
</main>
</div>