Rack Error with DreamHost, Passenger, and Rails 3.0.0.rc
问题 Background: I have viewed this question as well as this one - sadly, to no avail. Error Message (Passenger): You have already activated rack 1.1.0, but your Gemfile requires rack 1.2.1. Consider using bundle exec. my Gemfile: source 'http://rubygems.org' gem 'rails', '3.0.0.rc' gem 'nifty-generators' gem 'nokogiri' group :after_initialize do gem 'feedzirra' end my Gemfile.lock has this line: rack (1.2.1) my environment.rb has this line at the top: ENV['GEM_PATH'] = File.expand_path('~/.gems')