Comments feed – Undefined named entity: ndash

I used to have a rss comment feed at the url /comments/feed which doesn’t work anymore.

I checked the feed on feedvalidator and I’ve an error

line 111, column 29: Undefined named entity: ndash [help]

The line in question is comment where the content is

<guid isPermaLink="false">http://mart-e.be/?p=1694#comment-9711</guid>
<description>Ou mettre des &ndash; à la place des -
Mais oui la solution de rcommande fonctionne bien :)</description>

In the context, it is normal that there was an &ndash; there (explaining to write -- with &ndash;&ndash;).

Any idea how to fix this feed error ?

Solutions Collecting From Web of "Comments feed – Undefined named entity: ndash"

This issue may be the same over here: http://core.trac.wordpress.org/ticket/17767

Its currently submitted as a bug and hasn’t been fixed yet. You can give the supplied attachment a go to see if it fixes the issue for you.

<description>Ou mettre des &ndash; à la place des -
Mais oui la solution de rcommande fonctionne bien :)</description>
        <content:encoded><![CDATA[<p>Ou mettre des &amp;ndash; à la place des -<br />
Mais oui la solution de rcommande fonctionne bien <img src='http://img.mywordpresstips.com/comments/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
]]></content:encoded>

You can see in your feed that the &ndash; is properly encoded in content but not the description.

Quick fix is to delete the comment with the &ndash; in it.