Rails3 active support not loading required dependencies?

Hi All,

I’m playing with readability gem. I can use it on irb but failed on Rails3 app. Here’s the output http://pastie.org/private/1zuyaurnbkmq7u6raqkdhg

I believe it’s not a javascript error. Judging by the active support error, it failed loading the dependencies, I suspect that Rails has failed to load the required gems that readability use (like harmony, johnson and envjs) to handle javascript and DOM in Ruby.

I have all required gems installed and have this line on config/application.rb

Bundler.require(:default, Rails.env) if defined?(Bundler)

Any suggestion on what should I check?