title: getting error from devise "User does not respond to 'devise' method" when running "rails generate devise:install"
body: <p>I'm getting error from devise "User does not respond to 'devise' method" when running "rails generate devise:install".  Ideas re how to resolve?</p>
  
  <p>In fact also get this error when trying to run "rails generate devise:install" I just noted.</p>
  
  <p>Notes:</p>
  
  <pre><code>Gregs-MacBook-Pro:testapp greg$ rails generate devise:install
  /Library/Ruby/Gems/1.8/gems/devise-2.0.1/lib/devise/rails/routes.rb:406:in `raise_no_devise_method_error!': User does not respond to 'devise' method. This usually means you haven't loaded your ORM file or it's being loaded too late. To fix it, be sure to require 'devise/orm/YOUR_ORM' inside 'config/initializers/devise.rb' or before your application definition in 'config/application.rb' (RuntimeError)
      from /Library/Ruby/Gems/1.8/gems/devise-2.0.1/lib/devise/rails/routes.rb:207:in `devise_for'
      from /Library/Ruby/Gems/1.8/gems/devise-2.0.1/lib/devise/rails/routes.rb:203:in `each'
      from /Library/Ruby/Gems/1.8/gems/devise-2.0.1/lib/devise/rails/routes.rb:203:in `devise_for'
      from /Users/greg/source_rails/testapp/config/routes.rb:2
      from /Library/Ruby/Gems/1.8/gems/actionpack-3.2.1/lib/action_dispatch/routing/route_set.rb:272:in `instance_exec'
      from /Library/Ruby/Gems/1.8/gems/actionpack-3.2.1/lib/action_dispatch/routing/route_set.rb:272:in `eval_block'
      from /Library/Ruby/Gems/1.8/gems/actionpack-3.2.1/lib/action_dispatch/routing/route_set.rb:249:in `draw'
  </code></pre>
  
  <p>and</p>
  
  <pre><code>Gregs-MacBook-Pro:testapp greg$ ruby -v 
  **ruby 1.8.7** (2010-01-10 patchlevel 249) [universal-darwin11.0]
  
  Gregs-MacBook-Pro:testapp greg$ rails -v
  **Rails 3.2.1**
  
  Gregs-MacBook-Pro:testapp greg$ gem list
  
  *** LOCAL GEMS ***
  
  actionmailer (3.2.1)
  actionpack (3.2.1)
  activemodel (3.2.1)
  activerecord (3.2.1)
  activeresource (3.2.1)
  activesupport (3.2.1)
  addressable (2.2.6)
  arel (3.0.0)
  bcrypt-ruby (3.0.1)
  builder (3.0.0)
  bundler (1.0.22)
  coffee-rails (3.2.2)
  coffee-script (2.2.0)
  coffee-script-source (1.2.0)
  devise (2.0.1)
  erubis (2.7.0)
  execjs (1.3.0)
  faraday (0.7.6)
  hike (1.2.1)
  i18n (0.6.0)
  journey (1.0.1)
  jquery-rails (2.0.0)
  json (1.6.5)
  mail (2.4.1)
  mime-types (1.17.2)
  multi_json (1.0.4)
  multipart-post (1.1.4)
  mysql (2.8.1)
  mysql2 (0.3.11)
  oauth (0.4.5)
  oauth-plugin (0.4.0.rc2)
  oauth2 (0.5.2)
  orm_adapter (0.0.6)
  polyglot (0.3.3)
  rack (1.4.1)
  rack-cache (1.1)
  rack-ssl (1.3.2)
  rack-test (0.6.1)
  rails (3.2.1)
  railties (3.2.1)
  rake (0.9.2.2)
  rdoc (3.12)
  rubygems-update (1.8.15)
  sass (3.1.15, 3.1.14)
  sass-rails (3.2.4)
  sprockets (2.1.2)
  sqlite3 (1.3.5)
  thor (0.14.6)
  tilt (1.3.3)
  treetop (1.4.10)
  tzinfo (0.3.31)
  uglifier (1.2.3)
  warden (1.1.0)
  </code></pre>