rails 2.3.2 uninitialized constant ActionView::Helpers::FormHelper
Problem:
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:440:in `load_missing_constant':NameError: uninitialized constant ActionView::Helpers::FormHelper /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:443:in `load_missing_constant':NameError: uninitialized constant ApplicationController
Solution: for me it was that I did
require "calendar_date_select"
in environment.rb before the config. You have to move that require line to the end of the file.