I did the following.
1. I changed the rails version to 2.2.2 in environment.rb - RAILS_GEM_VERSION = '2.2.2' unless defined? RAILS_GEM_VERSION
2. from project path I ran a rake task $ rake rails:update
3. when i run $ ruby script/about. I get the following output. Please help me. What next to do - I am converting my rails app from 1.1.6 to 2.2.2.