I’m a wordpress hacker so I dunno exactly what’s going on here, but my take on it is that for some reason the installation version currently for download does not include the class Noop_Translation. That class has something to do with language translations, so perhaps its not crucial.
My solution, for what its worth
In my wordpress files I found and opened the file wp-includes/pomo/translations.php
I replaced all the text in that file with the text from this site:
http://lab.yukei.net/wp-trunk/wp-includes/pomo/translations.php.source.txt
This text includes the Noop_Translation class.
Basically by doing this I’ve made sure the file does include the class that the error check was looking for and hence I successfully get through to the normal installation page.
The same problem for me.
I posted my solution on http://wordpress.org/support/topic/344708?replies=7#post-1354001
But the solution is basically the same as Mr. koitaki’s one.
Thank you for posting this solution. It worked for me.
