gistfile1.txt

akashmanohar:cas-auth-app akashmanohar$ rails c
Loading development environment (Rails 3.1.0.rc1)
script/rails: No such file or directory - rvm tools identifier
load error: /Users/akashmanohar/.rvm/rubies/ruby-1.9.2-p180/.irbrc
NoMethodError: undefined method `strip' for nil:NilClass
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/whiny_nil.rb:48:in `method_missing'
	/Users/akashmanohar/.rvm/scripts/irbrc.rb:40:in `<top (required)>'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:237:in `require'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:237:in `block in require'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:223:in `block in load_dependency'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:639:in `new_constants_in'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:223:in `load_dependency'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:237:in `require'
	/Users/akashmanohar/.rvm/rubies/ruby-1.9.2-p180/.irbrc:11:in `<top (required)>'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:233:in `load'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:233:in `block in load'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:223:in `block in load_dependency'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:639:in `new_constants_in'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:223:in `load_dependency'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/activesupport-3.1.0.rc1/lib/active_support/dependencies.rb:233:in `load'
	/Users/akashmanohar/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/irb/init.rb:236:in `run_config'
	/Users/akashmanohar/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/irb/init.rb:19:in `setup'
	/Users/akashmanohar/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/irb.rb:53:in `start'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/railties-3.1.0.rc1/lib/rails/commands/console.rb:44:in `start'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/railties-3.1.0.rc1/lib/rails/commands/console.rb:8:in `start'
	/Users/akashmanohar/.rvm/gems/ruby-1.9.2-p180@rails31/gems/railties-3.1.0.rc1/lib/rails/commands.rb:40:in `<top (required)>'
irb(main):001:0> 

what happens to someone who is doomed to use windows? would updating pik help?

Maybe (if pik is a fork of rvm). Did you try updating it?

wtf? I didn't write this comment. probably my github account was hacked.

Thanks, HashNuke.
This solution also helps me for solving this problem.