Wordpress 404 pagination (/page/2) error?

Question

I have created custom post type for videos. Here is my code.

function video_register() {
    $labels = array(
        'name' => _x('Video', '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'),
        'parent_item_colon' => ''
    );

    $args = array(
        'labels' => $labels,
        'public' => true,
        'publicly_queryable' => true,
        'show_ui' => true,
        'query_var' => true,
        'menu_icon' => null,
        'rewrite' => true,
        'capability_type' => 'post',
        'hierarchical' => false,
        'menu_position' => null,
        'supports' => array('title', 'editor', 'thumbnail', 'comments', 'custom-fields')
    );

    register_post_type('video', $args);
}

and I have displayed this video post at home page using this code.

$paged = (get_query_var('page')) ? get_query_var('page') : 1;
    $temp = $wp_query;
    $wp_query= null;
    $vcount = 20;
    $wp_query = new WP_Query();

        $wp_query->query('posts_per_page='.$vcount.'&post_type=video&paged='.$paged);

It all working fine. But its pagination is giving me 404 error when I hit to /page/2.

This pagination is showing me at homepage only. On category pages it is working fine. I did not understand what I have mistaken. I searched every where on internet but could not found any solution. Please suggest me what is wrong with my code.

Answer 1

Pagination cannot be reliably implemented in template. It is resolved during load way before template it ever reached.

Unless you implement it from scratch (complete with rewrite) you need to be using pre_get_posts or other related hook to modify main query. Look around the site, there are plenty answer on topic of here.

Answer 2

Since you using this: get_query_var('page') Try this change of 'paged' to 'page' for the variable name.

$wp_query->query('posts_per_page='.$vcount.'&post_type=video&page='.$paged);