Custom meta box in custom post type not working

Hey Change Callback function to like this and add_meta_box to add_meta_boxes hook

function create_meta_box_slider() {    
    add_meta_box( 'new-meta-boxes-slider', __('slider Settings'), 'new_meta_box', 'slider', 'normal', 'high' );
}

add_action('add_meta_boxes', 'create_meta_box_slider');

function new_meta_box() {
    global $meta_box_groups;
    $meta_box_groups[] = $slide_info;
}

I think it work fine