创建了新角色(price_admin) 使用以下代码和添加的功能。菜单项出现了，但单击它会显示；您无权访问此页面；。

function ui_new_role() {  
    add_role(\'price_admin\',
            \'Price Calculator Admin\',
            array(
                \'read\' => true,
                \'edit_posts\' => true,
                \'delete_posts\' => true,
                \'publish_posts\' => true,
                \'upload_files\' => true,
            )
        );
        $roles = array(\'price_admin\',\'editor\',\'administrator\');
        foreach($roles as $the_role) { 
             $role = get_role($the_role);
                 $role->add_cap( \'read\' );
                 $role->add_cap( \'read_price\');
                 $role->add_cap( \'edit_price\' );
                 $role->add_cap( \'edit_prices\' );
                 $role->add_cap( \'edit_others_prices\' );
                 $role->add_cap( \'edit_published_prices\' );
                 $role->add_cap( \'publish_prices\' );
        }
}
add_action(\'admin_init\', \'ui_new_role\');

             register_post_type(
                    \'price\',
                    array(
                        \'labels\' => array(\'name\' => \'Treatment Questions\'),
                        \'capability_type\'     => array(\'price\',\'prices\'),
                        \'map_meta_cap\'        => true,
                        \'public\' => true,
                        \'show_ui\' => true,
                        \'show_in_menu\' => \'my-menu\',
                        \'menu_position\' => 15,
                        \'supports\' => array(\'title\'),
                        \'taxonomies\' => array(\'location\'),
                        \'has_archive\' => true,
                    )
                );

add_menu_page(\'My Page Title\', \'Price Calculator\', \'manage_options\', \'my-menu\', \'show_price\', \'dashicons-calculator\', \'13\');