Rspec-core requires rspec-expectations

Hi

Just wondering if anyone knows why I am getting this error now … ??

gem install rspec-rails --version 1.2.9 --no-ri --no-rdoc


Thank you for installing rspec-rails-1.2.9

If you are upgrading, do this in each of your rails apps
that you want to upgrade:

$ ruby script/generate rspec

Please be sure to read History.rdoc and Upgrade.rdoc
for useful information about this release.


ERROR: Error installing rspec-rails:
rspec-core requires rspec-expectations (>= 2.0.0.a2, runtime)

cheers
shane