Confused with rake error in Rails 3

Question

Noob trying to decipher what to do with the following error:

rake aborted! You have already activated rake 0.9.1, but your Gemfile requires rake 0.8.7. Consider usin

Answer 1

Do you have...

gem 'rake', '0.8.7'

... in your Gemfile?

If so, remove it.