I could not fix this in Rails 3.2.12, maybe I am missing something.
config/routes.rb
get \"home/index\"
root :to => \"home#index\
Though this question has been answered, I found another case where I was getting this error and wanted to document it here for posterity.
If you have two similar routes defined in your routes.rb file without the corresponding controllers you will get the uninitialized constant error.
Steps to reproduce:
rails generate scaffold foobar name:string
bundle exec rake db:migrate
add resources :foobars to routes.rb to a new scope (note: the foobars resource was already automatically added to the top of your routes.rb during scaffold generation) like this:
resources :foobars
########################################
# SUPER
########################################
constraints host: ENV['SUPER_HOST'] do
scope module: :super do
resources :foobars
get '/' => 'super#index'
end
end
Now, move /app/views/foobars to /app/views/super/foobars and, move /app/controllers/foobars_controller.rb to /app/controllers/super/foobars_controller.rb Make sure foobars_controller.rb is in the Super module:
class Super::FoobarsController < ApplicationController
Now go to your.dev.server/foobars/ You should get this error: Routing Error uninitialized constant FoobarsController
Now, remove resources :foobars from beginning of routes.rb It should work now!
It took me awhile to figure out why I was getting this error, and I didn't realize that generating the scaffold adds an entry in routes.rb