This error is what I get after havin installed the WxWidget with Homebrew. It seems to complain about a missing wx_osx_cocoau_core-3.0, but I found no info on the web to what this is.

Wx core 3.0 built for osx/cocoau

How did you install wxwidgets, using Alien::wxWidgets?

You can always try http://www.citrusperl.com/p/download.html as it comes with Wx