Thread:Extension talk:Wikibase Repository/Can create Properties, but not Items/reply (3)

The main namespace, title=Q9, says "There is currently no text in this page."

Thanks for pointing me to RecentChanges: all items I created are logged on Special:RecentChanges.

I think my namespaces are set up ok, like this in LocalSettings.php:

However, my nginx log shows some PHP errors with the constants:

PHP message: PHP Notice: Constant WB_NS_PROPERTY_TALK already defined in /usr/share/nginx/sites/wiki/LocalSettings.php on line 209

However, that is exactly the line where I define it in LocalSettings.php. I don't know where another attempt is made to define this constant.