Thread:Project:Support desk/PHP version error when upgrading from 1.17 to 1.21

Mediawiki - from 1.17 to 1.21 PHP - 5.2.17 (apache2handler) MySQL - 5.1.58-log

gridirondigest.info

I'm trying to update my wiki from 1.17 to 1.21 (and eventually to 1.5)
 * First, I did fix for Bug 48820 (https://bugzilla.wikimedia.org/show_bug.cgi?id=48820) - already performed this
 * Second, I uploaded and extracted the 1.21 bundle to gridirondigest.info/mediawiki-1.21.1/
 * Third, I opened http://gridirondigest.info/mediawiki-1.21.1/ in the browser and get this error: "http://gridirondigest.info/mediawiki-1.21.1/"5.
 * Fourth, I updated PHP to 5.3.27. Installation confirmed "Complete!"
 * Fifth, I reopened the installer in a browser, but get the same error as above.

I searched for another instance of this error, but was unable to find another instance of this error. For what it's worth, we also had the ipbwiki bridge software installed, but don't intend on using it in the future.