Help:Avoid namespace conflicts when using Semantic MediaWiki and Wikibase on the same instance

Semantic extension(s):	Semantic MediaWiki
Further extension(s):	Wikibase
Keyword(s):	namspace · namespace conflict

Description:

Use this configuration in your "LocalSettings.php" file after the inclusion of Semantic MediaWiki and Wikibase to avoid namespace conflicts between the two:1

// Avoid conflict with SMW namespaces.
$wgHooks['CanonicalNamespaces'][] = static function ( &$list ) {
        global $wgExtraNamespaces;
        $wgExtraNamespaces[WB_NS_PROPERTY] = $list[WB_NS_PROPERTY] = 'Wikibase_property';
        $wgExtraNamespaces[WB_NS_PROPERTY_TALK] = $list[WB_NS_PROPERTY_TALK] = 'Wikibase_property_talk';
};

In this example, the namespaces for Wikibase get renamed.