Fwd: report bugs: w3c validator

As it says here:
https://validator.w3.org/nu/about.html#issues
I report this as a problem to me.  But I'm learning how to make a web page
and I don't know if the w3c validator is right.

Here is the error*:*"

Element head <https://html.spec.whatwg.org/multipage/#the-head-element> is
missing a required instance of child element title.

At line 1, column 50 <https://validator.w3.org/nu/#cl1c50>

"salto()">↩↩<head
Content model for element head
<https://html.spec.whatwg.org/multipage/#the-head-element>:If the document
is an iframe srcdoc document
<https://html.spec.whatwg.org/multipage/#an-iframe-srcdoc-document> or if
title information is available from a higher-level protocol: Zero or more
elements of metadata content
<https://html.spec.whatwg.org/multipage/#metadata-content-2>, of which no
more than one is a title
<https://html.spec.whatwg.org/multipage/#the-title-element> element and no
more than one is a base
<https://html.spec.whatwg.org/multipage/#the-base-element> element.Otherwise:
One or more elements of metadata content
<https://html.spec.whatwg.org/multipage/#metadata-content-2>, of which
exactly one is a title
<https://html.spec.whatwg.org/multipage/#the-title-element> element and no
more than one is a base
<https://html.spec.whatwg.org/multipage/#the-base-element> element.".And
here is my html file:

Received on Sunday, 10 January 2021 23:58:55 UTC