Single page for Custom Post Type not found

Question

I made a custom post type named rt_test in a WordPress plugin as follow:

register_post_type( 'rt_test',
        array(
            'labels' => array(
                'name' => __( 'Tests' ),
                'singular_name' => __( 'Test' ),
                'add_new' => __('New Test'),
                'add_new_item' => __('Add New Test'),
                'edit_item' => __('Edit Test'),
                'view_item' => __('View Test'),
                'search_items' => __('Search Test'),
                'not_found' => __('No Test found'),
                'not_found_in_trash' => __('No Test found in Trash'),
            ),
            'public' => true,
            'supports' => array( 'title', 'editor', 'comments', 'thumbnail' ),
            'has_archive' => true,
        )
    );

And its data can be loaded via WP_Query() in index.php page of my theme. However, when I try to access the custom post type page (e.g. http://www.example.com/rt_test/test1/ ), it directs to WordPress's Page Not Found page.

From the Template Hierarchy documentation, I know that I should make a single-rt_test.php file in theme's folder to allow the theme to know the content of this file should be used to load the post "test1".

However, after uploading the file to theme folder in parallel with index.php, the link ( http://www.example.com/rt_test/test1/ ) still redirects to Not Found page.

What did I miss?

FYI, the theme folder only contains:

• index.php
• single-rt_test.php
• style.css

Answer 1

Go to Appearance » Menus and add a custom link to your menu. This custom link is the link to your custom post type. If you are using SEO friendly permalinks then your CPT’s URL will most likely be something like this:

http://example.com/movies

If you are not using SEO friendly permalinks, then your custom post type URL will be something like this:

http://example.com/?post_type=movies

Make sure that your permalink structure matches up to the URL you are entering to try to get to the custom post page and check to make sure that your .htaccess file is writable, if not, you will have to insert the rewrite rules generated by wordpess on your own.