my registered WP custom post, it does not work any longer since wp updated to 3.6

my registered WP custom post

/*------ #Add custom portfolio post type------*/
  add_action( 'init', 'create_my_post_types' );

	function create_my_post_types() {
		register_post_type( 'Portfolio', 
			array(
				'labels' => array(
					'name' => __( 'Portfolio' ),
					'singular_name' => __( 'Portfolio' ),
					'add_new' => __('Add a new work'),
				),
				'public' => true,
				'exclude_from_search' => true,
				'taxonomies' => array('post_tag', 'category'),
				'menu_position' => 4,
				'query_var' => true,
				'supports' => array( 'title', 'editor', 'excerpt', 'custom-fields', 'thumbnail' ),
				'menu_icon' => get_bloginfo('template_directory') . '/images/portfolio_icon_default_16x16.png',
			)
		);
	}

my superCPT codes

/*------ #Add Super Custom Post Meta------*/
  function my_portfolio() {
    if ( ! class_exists( 'Super_Custom_Post_Type' ) )
        return;
 
    // All your SuperCPT magic goes here!
	$post_meta = new Super_Custom_Post_Meta('Portfolio');
	$post_meta->add_meta_box(array(
		'id' => 'project_detail',
		'title' => 'Project Detail',
		'fields' => array(
			'brief' => array( 'label' => 'Project Brief', 'type' => 'textarea'),
			'client' => array( 'label' => 'Client', 'type' => 'text' ),
			'project' => array( 'label' => 'Project', 'type' => 'text' ),
			'date' => array( 'label' => 'Date', 'type' => 'text' ),
			'role' => array( 'label' => 'Role', 'type' => 'text' ),
			'credit' => array( 'label' => 'Credit', 'type' => 'text' ),
			'site_link' => array( 'label' => 'Site Link', 'type' => 'url'),
			'display_image' => array( 'label' => 'URL of project display image', 'type' => 'text'),
			'display_video' => array( 'label' => '(Animation) Display Video HTML Editor', 'type' => 'wysiwyg'),
			'showcase_image' => array( 'label' => '(Optional) URL of Showcase Image', 'type' => 'text' ),
			'showcase_copy' => array( 'label' => '(Optional) Showcase Copy', 'type' => 'textarea' )
		)
	));
	
	}
	add_action( 'after_setup_theme', 'my_portfolio' );