[Semediawiki-user] Fatal error: Unsupported operand types in includes/SMW_GlobalFunctions.php on line 307

[David B. <db...@co...>]

Hi,

I got this error after installing SemanticMediaWiki on MW with:


   - MediaWiki <http://www.mediawiki.org/>: 1.9.3
   - PHP <http://www.php.net/>: 5.2.1 (apache2handler)
   - MySQL <http://www.mysql.com/>: 5.0.37-standard


// Register namespace identifiers
if (!is_array($wgExtraNamespaces)) { $wgExtraNamespaces=array(); }
$wgExtraNamespaces = $wgExtraNamespaces + $smwgContLang->getNamespaces();

$wgNamespaceAliases = $wgNamespaceAliases +
$smwgContLang->getNamespaceAliases();


after some investigation I see that $wgNamespaceAliases is NULL, while
$smwgContLang->getNamespaceAliases() returns an empty array.

So I went ahead and added the same   " if (!is_array "  test to test
$wgNamespaceAliases as had bgeen done with $wgExtraNamespaces, converting it
to an empty array if necessary, and the code seems to work (though I haven't
tested any part of the extension yet).

It's hard to imagine that this is a bug because it would stop any
installation cold.  Is there something I'm doing or not doing here?

thanks

David