RSpec is missing gems even though they are installed

Hi Folks,

I am getting an error when trying to run my examples in RSpec:

Command: spec spec

Error:
Missing these required gems:
rspec-rails >= 1.2.2
cucumber >= 0.2.2

You’re running:
ruby 1.8.7.334 at /Users/auser/.rvm/rubies/ruby-1.8.7-p334/bin/ruby
rubygems 1.6.2 at /Users/auser/.rvm/gems/ruby-1.8.7-p334,
/Users/auser/.rvm/gems/ruby-1.8.7-p334@global

I have installed ruby using RVM.

How do I fix this issue?

Please help!

Thanks a lot!!!