From Joomla! Documentation
Upgrade issue 2.5.6 to 2.5.7
I upgraded from 2.5.6 to 2.5.7 from joomla control panel and I get an error on frontpage: Notice: Undefined property: JSite :: $ registeredurlparams in C: \ wamp \ www \ escolect2.5 \ libraries \ joomla \ cache \ cache.php on line 639. No hope and help me fix it.
- Hi Nicg006, the Documentation wiki is the wrong place to post a question. I moved the question you posted on the category page to your talk page. Please use Migrating and Upgrading to Joomla! 2.5 which includes questions and problems updating the current release, 2.5.x to 2.5.x. Hutchy68 (talk) 21:29, 13 September 2012 (CDT)