NameError: uninitialized constant ActiveSupport::Deprecation

[AJ Friend]

Hi all,

I'm just getting into ruby/rails, so this may be really basic, but
googling failed to solve the problem.

I'm getting this error just as i try to require feedzirra, just to
test it out in irb.

Any help would be appreciated.

Thanks,
AJ

1.9.2-p290 :009 > require 'feedzirra'
NameError: uninitialized constant ActiveSupport::Deprecation
from /home/aj/.rvm/gems/ruby-1.9.2-p290@rails3tutorial2ndEd/gems/
activesupport-3.2.1/lib/active_support/core_ext/module/deprecation.rb:
7:in `deprecate'
from /home/aj/.rvm/gems/ruby-1.9.2-p290@rails3tutorial2ndEd/gems/
activesupport-3.2.1/lib/active_support/core_ext/module/
synchronization.rb:44:in `<class:Module>'
from /home/aj/.rvm/gems/ruby-1.9.2-p290@rails3tutorial2ndEd/gems/
activesupport-3.2.1/lib/active_support/core_ext/module/
synchronization.rb:6:in `<top (required)>'
from /home/aj/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/
rubygems/custom_require.rb:36:in `require'
from /home/aj/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/
rubygems/custom_require.rb:36:in `require'
from /home/aj/.rvm/gems/ruby-1.9.2-p290@rails3tutorial2ndEd/gems/
activesupport-3.2.1/lib/active_support/core_ext/module.rb:8:in `<top
(required)>'
from /home/aj/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/
rubygems/custom_require.rb:36:in `require'
from /home/aj/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/
rubygems/custom_require.rb:36:in `require'
from /home/aj/.rvm/gems/ruby-1.9.2-p290@rails3tutorial2ndEd/gems/
feedzirra-0.1.1/lib/feedzirra.rb:8:in `<top (required)>'
from /home/aj/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/
rubygems/custom_require.rb:36:in `require'
from /home/aj/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/
rubygems/custom_require.rb:36:in `require'
from (irb):9
from /home/aj/.rvm/rubies/ruby-1.9.2-p290/bin/irb:16:in `<main>'