NoMethodError when using 'class_attribute'

How is your project setup? Can you elaborate on that. Thanks.

Neeraj - I'm just requiring the latest activesupport (activesupport-3.0.0.beta4) in irb:

irb(main):001:0> gem "activesupport", "3.0.0.beta4"
=> true
irb(main):002:0> require "active_support/core_ext"
=> true
irb(main):003:0> class Foo; class_attribute :bar; end
NoMethodError: undefined method `class_attribute' for Foo:Class
from (irb):3:in `<class:Foo>'
from (irb):3
from /Users/csepic/.rvm/rubies/ruby-1.9.1-p378/bin/irb:15:in `<main>'
irb(main):004:0>

Looking in class.rb, there is simply no "require" for attribute.rb. I don't know if there is a reason for this.

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