I just installed k2 on my site and the installation seemed to go through just fine. No errors during installation. However, when I try to access the K2 component, I get the following error:

It doesn't matter whether or not I"m accessing through the quick icons or through the menu Component->K2->(sub menu).

I've tried all 3 methods of installation, from the direct download link, uploading the zip file and even uncompromising it on my server and installing from a folder and have had no luck. I've installed K2 on many websites and never ran into this before.

Any suggestions?

Try disabling error reporting from the site's global configuration.