Trying Fjax in ruby

Hi all,
I am trying to use the new fjax in my ruby on rails project. I have
downloaded the Fjax-SDK from the fjax site(unzipped it), included the
Fjax folder in the lib folder of my RadRailsproject, modified the
environment.rb( included the code require ‘/lib/Fjax-SDK’). I am trying
to start my webrick server. Its going oooon starting. Can anyone help

Thanks in advance.