title: Trouble loading Rails Server (3.0.11, ruby 1.9.2), no such file to load -- sprockets/railtie (LoadError)
body: <p>Using the Hartl tutorial.</p>
  
  <p>Command: rails s</p>
  
  <p>Response:</p>
  
  <pre><code>/Users/davidpardy/rails_projects/sample_app/config/application.rb:8:in `require': no such file     to load -- sprockets/railtie (LoadError)
      from /Users/davidpardy/rails_projects/sample_app/config/application.rb:8:in `&lt;top     (required)&gt;'
      from /Users/davidpardy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.11/lib/rails    /commands.rb:28:in `require'
      from /Users/davidpardy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.11/lib/rails    /commands.rb:28:in `block in &lt;top (required)&gt;'
      from /Users/davidpardy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.11/lib/rails    /commands.rb:27:in `tap'
      from /Users/davidpardy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.0.11/lib/rails    /commands.rb:27:in `&lt;top (required)&gt;'
      from script/rails:6:in `require'
      from script/rails:6:in `&lt;main&gt;'
  </code></pre>
  
  <p>application.rb file below</p>
  
  <pre><code>require File.expand_path('../boot', __FILE__)
  
  # Pick the frameworks you want:
  require "active_record/railtie"
  require "action_controller/railtie"
  require "action_mailer/railtie"
  require "active_resource/railtie"
  require "sprockets/railtie"
  #require "rails/test_unit/railtie"
  
  if defined?(Bundler)
    # If you precompile assets before deploying to production, use this line
    Bundler.require(*Rails.groups(:assets =&gt; %w(development test)))
    # If you want your assets lazily compiled in production, use this line
    #Bundler.require(:default, :assets, Rails.env)
  end
  
  module SampleApp
    class Application &lt; Rails::Application
      config.encoding = "utf-8"
      config.filter_parameters += [:password]
      config.assets.enabled = true
      config.assets.version = '1.0'
    end
  end
  </code></pre>
  
  <p>Tried commenting out sprockets, just created more problems (and nothing came of that, unfortunately).</p>
  
  <p>WUG thoughts?</p>