Thread:Project:Support desk/Mediawiki install

I am trying to install this on CentOS 6.6. I install the software and it won't let me do the actual setup. I've tried many things suggested on the internet. When I try to run the update script, I get the following error:

Function: DatabaseBase::sourceFile( /var/www/html/mediawiki-1.25.1/maintenance/interwiki.sql ) Error: 1054 Unknown column 'iw_api' in 'field list' (localhost)