Recently I saw lots of structured error from my webmaster, when I tested my WordPress pages via Google Structured Data testing tools, I got the Following errors:
Error: Missing required field “entry-title”.
Error: Missing required field “updated”.
Error: Missing required hCard “author”. How to solve those issues
Just add / update the following codes then all issues will be gone.
<h1 class="title single-title entry-title"><?php the_title(); ?></h1>
<span class="post_date date updated"><?php the_time('j F,Y'); ?></span>
<span class="vcard author">
<span class="fn"><?php the_author(); ?></span>
</span>