Thumbnails Not Generating

Question

Ok,

So this is a weird issue...WordPress doesn't generate thumbnails, I have my image sizes set and everything...I'm pretty sure it's related to my custom posts type code (see below) because when I remove it the thumbnails generate properly.

// Tells WP to add a slides and marquee sections
add_action( 'init', 'create_my_post_types' );

// WP slides section attributes
function create_my_post_types() {
    // Add Slide Section
    register_post_type( 'slides',
        array(
            'exclude_from_search' => true,
            'labels' => array(
                'name' => __( 'Slides' ),
                'singular_name' => __( 'Slides' ),
                'search_items' => __('Search Slides'),
            ),
                    'public' => true,
                    'publicly_queryable' => true,
                    'show_ui' => true,
                    'query_var' => true,
                    'rewrite' => true,
                    'capability_type' => 'post',
                    'hierarchical' => false,
                    'menu_position' => 5,
                    'supports' => array('title','editor','thumbnail')
        )
    );
    // Add Marquee Section
    register_post_type( 'marquee',
        array(
            'exclude_from_search' => true,
            'labels' => array(
                'name' => __( 'Marquee' ),
                'singular_name' => __( 'Marquee' ),
                'search_items' => __('Search Marquee'),
            ),
                    'public' => true,
                    'publicly_queryable' => true,
                    'show_ui' => true,
                    'query_var' => true,
                    'rewrite' => true,
                    'capability_type' => 'post',
                    'hierarchical' => false,
                    'menu_position' => 6,
                    'supports' => array('title','editor')
        )
    );
}

Anyone see what's wrong with the code or know why this code would interfere with normal thumbnail generation?

Thanks,
Josh

Answer 1

In your custom post type slides you have provided support for thumbnail and When you use custom post type that use thumbnails remember to check that the theme also supports thumbnails or use add_theme_support function.

For more information see the supports parameter on this page.