Nico Rikken<p>I tried validating <a href="https://mastodon.nl/tags/Docbook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Docbook</span></a> v5 using <a href="https://mastodon.nl/tags/xmllint" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>xmllint</span></a> from <a href="https://mastodon.nl/tags/libxml2" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>libxml2</span></a> via <a href="https://mastodon.nl/tags/RelaxNG" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RelaxNG</span></a> and <a href="https://mastodon.nl/tags/Schematron" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Schematron</span></a> but wasn't successful. The RNG validation threw unexpected errors and the Schematron validation threw an internal error. It could be my source file, but it seems fine. Does somebody here have a working setup or tips to share?</p>