title: rails generate rspec:install config/environments/development.rb:1:in `<top (required)>': undefined method `configure'
body: <p>first, here are my versions:</p>
  
  <pre><code>Greg-Nowickis-MacBook-Pro:sample_app Greg_Nowicki$ ruby -v
  ruby 2.0.0p451 (2014-02-24 revision 45167) [x86_64-darwin13.1.0]
  Greg-Nowickis-MacBook-Pro:sample_app Greg_Nowicki$ rails -v
  Rails 4.0.4
  </code></pre>
  
  <p>I'm following the Hartl Rails tutorial and am install rspec for testing. I have added gem 'rspec-rails' to my gemfile and when I run rails generate rspec:install, this is what I get:</p>
  
  <pre><code>Greg-Nowickis-MacBook-Pro:sample_app Greg_Nowicki$ rails generate rspec:install
      /Users/Greg_Nowicki/workspace/railstutorial/sample_app/config/environments/development.rb:1:in `&lt;top (required)&gt;': undefined method `configure' for #&lt;SampleApp::Application:0x007fcd3a47c138&gt; (NoMethodError)
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:229:in `require'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:229:in `block in require'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:214:in `load_dependency'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/activesupport-4.0.4/lib/active_support/dependencies.rb:229:in `require'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/engine.rb:591:in `block (2 levels) in &lt;class:Engine&gt;'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/engine.rb:590:in `each'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/engine.rb:590:in `block in &lt;class:Engine&gt;'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:30:in `instance_exec'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:30:in `run'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:55:in `block in run_initializers'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:150:in `block in tsort_each'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:183:in `block (2 levels) in each_strongly_connected_component'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:210:in `block (2 levels) in each_strongly_connected_component_from'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:219:in `each_strongly_connected_component_from'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:209:in `block in each_strongly_connected_component_from'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:44:in `each'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:44:in `tsort_each_child'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:203:in `each_strongly_connected_component_from'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:182:in `block in each_strongly_connected_component'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:180:in `each'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:180:in `each_strongly_connected_component'
  from /Users/Greg_Nowicki/.rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/tsort.rb:148:in `tsort_each'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/initializable.rb:54:in `run_initializers'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/application.rb:215:in `initialize!'
  from /Users/Greg_Nowicki/workspace/railstutorial/sample_app/config/environment.rb:5:in `&lt;top (required)&gt;'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/application.rb:189:in `require'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/application.rb:189:in `require_environment!'
  from /Users/Greg_Nowicki/.rvm/gems/ruby-2.0.0-p451@railstutorial_rails_4_0/gems/railties-4.0.4/lib/rails/commands.rb:44:in `&lt;top (required)&gt;'
  from bin/rails:8:in `require'
  from bin/rails:8:in `&lt;main&gt;'
  </code></pre>
  
  <p>Here is my gemfile:</p>
  
  <pre><code>source 'https://rubygems.org'
  ruby '2.0.0'
  
  
  gem 'rails', '4.0.4'
  
  group :development, :test do
    gem 'sqlite3', '1.3.8'
    gem 'rspec-rails', '~&gt; 3.0.0.beta'
  end
  
  group :test do
    gem 'selenium-webdriver', '2.35.1'
    gem 'capybara', '2.1.0'
  end
  
  gem 'sass-rails', '4.0.1'
  gem 'uglifier', '2.1.1'
  gem 'coffee-rails', '4.0.1'
  gem 'jquery-rails', '3.0.4'
  gem 'turbolinks', '1.1.1'
  gem 'jbuilder', '1.0.2'
  
  group :doc do
    gem 'sdoc', '0.3.20', require: false
  end
  
  group :production do
    gem 'pg', '0.15.1'
    gem 'rails_12factor', '0.0.2'
  end
  </code></pre>
  
  <p>and here's config/environments/development.rb</p>
  
  <pre><code>Rails.application.configure do
    # Settings specified here will take precedence over those in config/application.rb.
  
    # In the development environment your application's code is reloaded on
    # every request. This slows down response time but is perfect for development
    # since you don't have to restart the web server when you make code changes.
    config.cache_classes = false
  
    # Do not eager load code on boot.
    config.eager_load = false
  
    # Show full error reports and disable caching.
    config.consider_all_requests_local       = true
    config.action_controller.perform_caching = false
  
    # Don't care if the mailer can't send.
    config.action_mailer.raise_delivery_errors = false
  
    # Print deprecation notices to the Rails logger.
    config.active_support.deprecation = :log
  
    # Raise an error on page load if there are pending migrations.
    config.active_record.migration_error = :page_load
  
    # Debug mode disables concatenation and preprocessing of assets.
    # This option may cause significant delays in view rendering with a large
    # number of complex assets.
    config.assets.debug = true
  
    # Adds additional error checking when serving assets at runtime.
    # Checks for improperly declared sprockets dependencies.
    # Raises helpful error messages.
    config.assets.raise_runtime_errors = true
  
    # Raises error for missing translations
    # config.action_view.raise_on_missing_translations = true
  end
  </code></pre>
  
  <p>Any thoughts on what this may be? I went ahead and updated rspec-rails to the latest version - thoughts?</p>