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Rich results test detects error "missing field 'id'" while it is present

Following this guide from Google. I am adding Microdata to my website's breadcrumbs.

When testing my own code, I am getting the error that the field "id" is missing, while it is not from what I can see and understand. Am I missing something here or is it a bug in the test tool of Google?

You can test yourself at https://search.google.com/test/rich-results/result with below code.

    <html>
      <head>
        <title>Microdata test</title>
      </head>
        <body>
            <div class="container">
                <div class="row">
                    <div class="col-12 col-lg-10 offset-lg-1">
                        <nav aria-label="breadcrumb" class="breadcrumb top">
                            <ol class="breadcrumb" itemscope itemtype="https://schema.org/BreadcrumbList">
                                <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb-item">
                                    <a itemid="http://localhost/hikes-and-walks" href="http://localhost/hikes-and-walks" itemprop="item" itemscope itemtype="https://schema.org/WebPage"><span itemprop="name">Home</span></a>                        <meta itemprop="position" content="1" />
                                </li>
                                <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb-item">
                                    <a itemid="http://localhost/hikes-and-walks/hikes/bulgaria" href="http://localhost/hikes-and-walks/hikes/bulgaria" itemprop="item" itemscope itemtype="https://schema.org/WebPage"><span itemprop="name">Bulgaria</span></a>                        <meta itemprop="position" content="2" />
                                </li>
                                <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb-item active" aria-current="page">
                                    <span itemprop="name">Aleko hut to Zheleznitsa village</span>
                                    <meta itemprop="position" content="3" />
                                </li>
                            </ol>
                        </nav>
                    </div>
                </div>
            </div>
        </body>
    </html>

It is giving the error "Missing field 'id'": enter image description here enter image description here

Solution

  • It's probably due to some internal validations that are hard to grasp. It looks like itemid requires a specific URL structure. In this case either relative or absolute URL (protocol+root+tld) work, i.e.changing "http://localhost" to "http://localhost.site" passes the test. Relative URLs also work.

    So, change itemid URL to:

    absolute URL:

    itemid="http://localhost.site/hikes-and-walks"

    or relative URL:

    itemid="/hikes-and-walks"

    Also, these (valid) examples won't work:

    urn:isbn:9780307476463

file:///ada/Analytical%20Engine/README.md   

ftp://file

    Here's the working code:

    <html>
  <head>
    <title>Microdata test</title>
  </head>
    <body>
        <div class="container">
            <div class="row">
                <div class="col-12 col-lg-10 offset-lg-1">
                    <nav aria-label="breadcrumb" class="breadcrumb top">
                        <ol class="breadcrumb" itemscope itemtype="https://schema.org/BreadcrumbList">
                            <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb-item">
                                <a itemid="http://localhost.site/hikes-and-walks" href="http://localhost/hikes-and-walks" itemprop="item" itemscope itemtype="https://schema.org/WebPage"><span itemprop="name">Home</span></a>                        <meta itemprop="position" content="1" />
                            </li>
                            <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb-item">
                                <a itemid="http://localhost.site/hikes-and-walks/hikes/bulgaria" href="http://localhost/hikes-and-walks/hikes/bulgaria" itemprop="item" itemscope itemtype="https://schema.org/WebPage"><span itemprop="name">Bulgaria</span></a>                        <meta itemprop="position" content="2" />
                            </li>
                            <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb-item active" aria-current="page">
                                <span itemprop="name">Aleko hut to Zheleznitsa village</span>
                                <meta itemprop="position" content="3" />
                            </li>
                        </ol>
                    </nav>
                </div>
            </div>
        </div>
    </body>
</html>