RubyGem version error: activesupport(1.4.4 not = 2.3.2)

I have been getting this error [1] when trying to set up a ORM lesson for ActiveRecord. Specifically trying to use active record inside of a Rake file.

[1]RubyGem version error: activesupport(1.4.4 not = 2.3.2)

$ gem list
*** LOCAL GEMS ***

abstract (1.0.0)
actionmailer (2.3.5)
actionpack (2.3.5)
activerecord (2.3.5)
activeresource (2.3.5)
activesupport (2.3.5)
acts_as_taggable (2.0.2)
compass (0.8.17)
erubis (2.6.5)
feed-normalizer (1.5.1)
haml (2.2.17)
hoe (2.3.3)
maruku (0.6.0)
mbleigh-acts-as-taggable-on (1.0.5)
mysqlplus (0.1.1)
ncurses (0.9.1)
rack (1.0.1)
rails (2.3.5)
rake (0.8.7)
rubyforge (1.0.4)
sequel (3.8.0, 3.7.0)
simple-rss (1.2)
sinatra (0.9.4)
sqlite3-ruby (1.2.5)
syntax (1.0.0)

activesupport 2.3.5 does seem to be present. but it was fixed by running:
$ gem install activesupport