This is my Gemfile:
gem "rails", "~> 2.3.8"
gem "rake", "0.9.2"
gem 'mysql', '2.8.1'
gem 'aasm', '2.1.5'
gem "authlogic", "2.1.6"
gem "acl9", "0.12.0"
gem "formtastic", "1.2.5"
But bundle install reports:
Bundler could not find compatible versions for gem "activesupport":
In Gemfile:
rails (~> 2.3.8) ruby depends on
activesupport (= 2.3.8) ruby
authlogic (= 2.1.6) ruby depends on
activesupport (1.0.0)
UPDATE
I've tried different combinations of gem versions. And finally found a row without the version specification... that I didn't saw between comments. So the code snippet above was already correct.