求助大神：wpjam自定义文章类型permastruct

wpjam_register_post_type('team',[
'public' => true,
'label' => '团队',
'menu_position' => 4,
'menu_icon' => 'dashicons-groups',
'supports' => ['title','editor'],
'has_archive' => true,
'rewrite' => ['slug' => 'team', 'with_front' => false],
'permastruct'=> '/team/%post_id%.html'
]);
如上：'permastruct'=> '/team/%post_id%.html' 的情况下，固定链接可以实现 http://www.xxoo.com/team/56.html ; 如果 %post_id% 换成 %postname% 固定链接只能 http://www.xxoo.com/team/postname 没有后缀.html，尝试各种方式无果，求助大神。