fb:admins元标记中仅允许使用个人ID .即使应用程序ID实际上是有效的，它也不起作用(与错误消息中所说的相反).

Only personal IDs are allowed in the fb:admins meta tag. Application IDs won't work, even though they are actually valid (in contrary to what the error message says).

(可选)它也可以与page_id一起使用:

Optionally, it may also work with page_id:

<meta property="fb:page_id" content="395450240451647" />

建议的app_id根本不起作用:(

The suggested app_iddidn't work at all :(