Thread:Extension talk:Purge/Special:Version empty

when I had $wgExtensionMessagesFiles['Purge'] = $dir. 'Purge.i18n.php'; in Purge.php

my http://projetgentilsvirus.ouvaton.org/index.php/Sp%C3%A9cial:Version was empty ... don't know why ... probably because of another extension ??

I just commented it and had sthg like : 'text' => 'Actualiser - Refresh', // wfMsg( 'purge' ), so that the purge label is OK on my wiki