rake aborted! undefined method `generate_best_match=' for ActionController::Routing:Module

Added by chaninan jitonnom over 10 years ago

I got this error message when I trying to roll back rails version in environment.rb to RAILS_GEM_VERSION = '2.1.0' (from RAILS_GEM_VERSION = '2.3.5' to RAILS_GEM_VERSION = '2.1.0' ) but the current rails version is 2.3.5. what should i do to resolve this problem ?