From: Ben Dunlap on 3 Sep 2009 16:39
> I followed this thread:
> But then, I'm bounched on this error in my webbrowser for visitting my
> magento on my production server desktop:
> Fatal error: Call to a member function createDirIfNotExists() on a
> non-object in /var/www/html/magento/app/Mage.php on line 644
Sounds like your version of Magento isn't compatible with PHP 5.3 (and
perhaps less-recent releases also?).
Is there a newer version of Magento available?