Wordpress metabox not showing up - php

Question

I need a Webinar in my wordpress site. So I'm registering an meta box for my custom post type. I can see my custom post in the wordpress admin panel, but inside the custom post meta box is missing. What is wrong here!
// Meta boxes
add_filter( 'rwmb_meta_boxes', 'navbig_webinars_register_meta_boxes' );
//Register meta boxes
function navbig_webinars_register_meta_boxes( $meta_boxes )
{
$prefix = 'navbig_webinars_';
$meta_boxes[] = array(
'id' => 'standard',
'title' => __( 'Webinar Data', 'rwmb' ),
'pages' => array( 'webinar' ),
'context' => 'normal',
'priority' => 'high',
'autosave' => true,
'fields' => array(
array(
'name' => __( 'Date of Webinar', 'rwmb' ),
'id' => "webinar_date",
'type' => 'date',
// jQuery date picker options. See here http://api.jqueryui.com/datepicker
'js_options' => array(
'dateFormat' => __( 'dd-MM-yy', 'rwmb' ),
'changeMonth' => true,
'changeYear' => true,
'showButtonPanel' => true,
),
),
array(
'name' => __( 'Location', 'rwmb' ),
'id' => "webinar-location",
'type' => 'text',
'std' => __( 'Default text value', 'rwmb' ),
),
array(
'name' => __( 'Time Of Webinar', 'rwmb' ),
'id' => 'webinar_time',
'type' => 'time',
'js_options' => array(
'stepMinute' => 5,
'showSecond' => true,
'stepSecond' => 10,
),
),
array(
'name' => __( 'Select Time Zone', 'rwmb' ),
'id' => "select-timezone",
'type' => 'select_advanced',
'options' => array(
'value1' => __( 'PST', 'rwmb' ),
'value2' => __( 'EST', 'rwmb' ),
),
'multiple' => false,
'placeholder' => __( 'Select an Coures Type', 'rwmb' ),
),
// URL
array(
'name' => __( 'Webinar URL', 'rwmb' ),
'id' => "webinar_url",
'type' => 'url',
'std' => 'http://google.com',
),
array(
'name' => __( 'Webinar Banner', 'rwmb' ),
'id' => "webinar_banner",
'type' => 'thickbox_image',
),
),
);
return $meta_boxes;
}

Answer 1

You can find more detail about meta boxes here.
Here is sample add_meta_box code:-
add_meta_box(
'some_meta_box_name'
,__( 'Some Meta Box Headline', 'plugin_textdomain' )
,'render_meta_box_content' //this is callback function.
,'post_type'
,'advanced'
,'high'
);