<https://larryullman.com/forums/index.php?/topic/29-part-3-physical-products-ch8-creating-a-catalog/#comment-60>
<http://schema.org/text>
"Thanks for the nice words. As I wrote in my previous post to the original poster, I suspect the problem has to do with your directory structure (i.e., how the files are organized on your computer and what URLs you're using). "
<https://larryullman.com/forums/index.php?/topic/29-part-3-physical-products-ch8-creating-a-catalog/#comment-308>