html - GSC depsite 模式中不可解析的结构化数据错误在结构化数据测试工具上签出

Question

我制作了一些产品模式，该模式在最长的时间内是有效的，但现在突然在上周或者看到未能通过 GSC。我什至在结构化数据工具上测试了相同的模式，它在那里进行了检查。

这是一个例子：

<script type="application/ld+json">
  {
    "@context": "http://schema.org",
    "@type": "Review",
    "itemReviewed": {
      "@type": "Product",
      "name": "Osprey Farpoint Trek 75",
      "material": "420HD Nylon Packcloth",      "description": "The Osprey Farpoint Trek 75 is touted as a hyrbid between a travel backpack and a trekking backpack. So does it deliever? Let's find out...",     "brand": "Osprey",
      "image": "https://www.thebrokebackpacker.com/wp-content/uploads/2019/11/osprey-farpoint-trek-75-review-10-690x460.jpg",
      "review": {
                        "reviewRating": {
          "@type": "Rating",
         "ratingValue": "4.5",
          "bestRating": "5",
          "worstRating": "0"
        },
                "author": {
          "@type": "Person",
          "name": "Ralph Cope"
        }
      }
    },
   "dateCreated": "November 4 2019",
    "dateModified": "January 21 2021",
        "reviewRating": {
      "@type": "Rating",
      "ratingValue": "4.5",
      "bestRating": "5",
      "worstRating": "0"
    },
        "author": {
      "@type": "Person",
      "name": "Ralph Cope"
    },
    "publisher": {
      "@type": "Organization",
      "name": "The Broke Backpacker",
      "logo": "https://8ut3vnmqb148491id57v2rl2-wpengine.netdna-ssl.com/wp-content/uploads/2018/04/logo-correct-size-e1403259130731-small.png"
    }
      }
  </script>

GSC 将第一个大括号标记为错误。

请帮助我了解这里发生了什么。无法弄清楚为什么 GSC 突然打破了我的蛋蛋！谷歌可能在一夜之间改变了它的架构标准吗？

提前致谢。

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