I\'m trying to figure out how to get rmagick on my app, and then make it work on Heroku?
Once I did the following from capps answer.
gem "rmagick", "2.12.0", :require => 'RMagick'
Then I added the require statement to any file uses rmagick it fixed my issue.
require 'RMagick'
This worked on Heroku cedar stack running rails 3.1