Thread:Project:Support desk/ReflectionException: Class SkinVector does not exist (2)

hi,all

I have just installed the wikimedia,but i encountered the error output:

ReflectionException: Class SkinVector does not exist in /media/D/xampp/htdocs/mediawiki-1.18.0/includes/Init.php on line 148........

my wiki version: MediaWiki-1.18.0

and i install it on my notebook: ubuntu11.04 mysql Ver 14.14 Distrib 5.1.54 PHP 5.3.5-1