Routing error rails 3 - ruby-on-rails-3

Question

I have a Rails 2.3.5 app with many controllers, models etc. which I'm trying to upgrade to Rails 3.2.21. I'm having some troubles with my routes. I tried to follow the Rails 3 new routing format but it doesn't seem to work. I'm getting two problems (which I guess all indicate one fundamental issue with my routing):
In the root ('/') I'm getting the generic "Welcome abroad" Rails
page. My routes (see below) have defined routing for root.
For some controllers I get No route matches [GET] "/study" message. My route shows this route, but for some reason doesn't define the GET method.
Here's my config/routes.rb code:
Myapp::Application.routes.draw do
root :to => 'study#index'
match 'login' => 'login', :protocol => 'https://'
resources :study_maps do
get :clone, :on => :member
end
# Route report create actions to the report controller
match 'report/create', :as => 'report'
match ':controller(/:action(/:id))(.:format)'
end
If I'm running rake routes I'm getting:
root / study#index
login /login(.:format) login#login {:protocol=>"https://"}
clone_study_map GET /study_maps/:id/clone(.:format) study_maps#clone
study_maps GET /study_maps(.:format) study_maps#index
POST /study_maps(.:format) study_maps#create
new_study_map GET /study_maps/new(.:format) study_maps#new
edit_study_map GET /study_maps/:id/edit(.:format) study_maps#edit
study_map GET /study_maps/:id(.:format) study_maps#show
PUT /study_maps/:id(.:format) study_maps#update
DELETE /study_maps/:id(.:format) study_maps#destroy
report /report/create(.:format) report#create
/:controller(/:action(/:id))(.:format) :controller#:action
Here's my StudyController#index code:
require 'myapp/studymgr'
require 'project_user'
require_dependency 'myapp/controller_extensions/report_manager'
class StudyController < ApplicationController
include PaginatorController
before_filter(:authenticate, :except => [:todo])
before_filter(:authorize,
:only => [:update, :destroy, :edit, :prune, :select_experiments ])
def index
#tags = Stag.find(:all).collect { |stag| stag.tag }
...
#include_ext = true
end
end
Can someone advise on what I'm missing?

Answer 1

Finally found a solution - my views had .rhtml extension. I found that this format is no longer supported under Rails 3 (What is the difference Between .erb , .rhtml and .html.erb?), so I changed all views extensions to .html.erb and then the routes worked with no need to specify explicit resource for each controller, just using the generic route: match ':controller(/:action(/:id))'.
As for the issue in the root route (#1 above), where I always got the Rails "Welcome abroad" page, despite having explicit route in my routes.rb, turns out I had to remove public/index.html which is loaded for root by Rails, and then my view was loaded.