我使用 Sails js 和 Angularjs 建立一个网站，我想创建Facebook分享按钮，但我发现了一个问题，似乎他们无法读取我的元：og in我的layout.ejs文件。我使用https://developers.facebook.com/tools/debug/但结果是：
Inferred Property The 'og:image' property should be explicitly provided, even if a value can be inferred from other tags.
Missing Properties
The following required properties are missing: og:url, og:type, og:title, og:image, og:description, fb:app_id
这是我的代码
<meta property="og:title" content="Facebook Open Graph META Tags"/>
<meta property="og:image" content="https://davidwalsh.name/wp-content/themes/klass/img/facebooklogo.png"/>
<meta property="og:site_name" content="David Walsh Blog"/>
<meta property="og:description" content="Facebook's Open Graph protocol allows for web developers to turn their we">
<meta name="description" content="{{meta.metaDescription()}}">
<meta http-equiv="content-type" content="text/html;charset=UTF-8">
<meta name="keywords" content="{{meta.metaKeywords()}}">
<meta name="author" content="BLAH inc">
<meta name='subject' content='my subject'>
<meta name='copyright' content='BLAH inc'>
<meta name='language' content='ID-id'>
<meta name='robots' content='index,follow'>
<meta name='revised' content='Wednesday, 09-Aug-2017, 14:21'>
<meta name='abstract' content='my abstract'>
<meta name='topic' content='my topic'>
<meta name='summary' content='my summary'>
<meta name='Classification' content='Business'>
<meta name='owner' content='my owner'>
<meta name='url' content='https://www.mywebsite.com'>
<meta name='identifier-URL' content='https://www.mywebsite.com'>
<meta name='directory' content='submission'>
<meta name='pagename' content='blah'>
<meta name='category' content='blah'>
<meta name='coverage' content='..'>
<meta name='distribution' content='..'>
<meta name='rating' content='..'>
<meta name='revisit-after' content='1 days'>
<meta name='subtitle' content='..'>
<meta name='target' content='all'>
<meta name='HandheldFriendly' content='True'>
<meta name='MobileOptimized' content='320'>
<meta name='date' content='Aug. 22, 2016'>
<meta name='search_date' content='2017-05-09'>
<meta name='DC.title' content='...'>
我的错误是什么？