title: Getting error 'Bundler could not find compatible versions for gem "railties"'
body: <p>I am following Michael Hartl's ruby on rails tutorial and while deploying my first app, I am getting the following error:</p>
  
  <pre><code>Bundler could not find compatible versions for gem "railties":
  
    In Gemfile:
  
      rails (= 4.0.0) x86-mingw32 depends on
        railties (= 4.0.0) x86-mingw32
  
      sass-rails (= 4.0.0) x86-mingw32 depends on
        railties (4.0.1.rc3)
  </code></pre>
  
  <p>My Gemfile looks like the following:</p>
  
  <pre><code>source 'https://rubygems.org'
  
  ruby '1.9.3'
  
  gem 'rails', '4.0.0'
  
  group :development do
    gem 'sqlite3', '1.3.8'
  end
  
  gem 'sass-rails',   '4.0.0'
  
  gem 'uglifier', '2.1.1'
  
  gem 'coffee-rails', '4.0.1'
  
  gem 'jquery-rails', '3.0.4'
  
  gem 'turbolinks'
  
  gem 'jbuilder', '~&gt; 1.2'
  
  group :doc do
    # bundle exec rake doc:rails generates the API under doc/api.
  
    gem 'sdoc', require: false
  
  end
  </code></pre>
  
  <p>Any idea what I'm missing here?</p>