title: Bundle install/update not working
body: <p>Taking a rails tutorial, and I've run into the following problem that I'm having trouble figuring out. I'm creating a sample app that's supposed to use the following gemfile:</p>
  
  <pre><code>source 'https://rubygems.org'
  
  gem 'rails', '3.2.5'
  
  group :development, :test do
      gem 'sqlite3', '1.3.5'
      gem 'rspec-rails', '2.10.0'
  end
  
  # Gems used only for assets and not required
  # in production environments by default.
  group :assets do
    gem 'sass-rails', '~&gt; 3.2.4'
    gem 'coffee-rails', '~&gt; 3.2.2'
    gem 'uglifier', '1.2.3'
   end
  
    # See https://github.com/sstephenson/execjs#readme for more supported runtimes
    # gem 'therubyracer', :platform =&gt; :ruby
  
  gem 'jquery-rails', '2.0.0'
  
  group :test do
      gem 'capybara', '1.1.2'
  end 
  
  group :production do
      gem 'pg', '0.12.2'
  end
  </code></pre>
  
  <p>When I tried to "bundle install --without production" per instructions, though, I get this </p>
  
  <blockquote>
    <p>Bundler could not find compatible versions for gem "activesupport":
     In snapshot (Gemfile.lock):
       activesupport (3.2.3)</p>
    
    <p>In Gemfile:
       rails (= 3.2.5) ruby depends on
         activesupport (= 3.2.5) ruby</p>
    
    <p>Running <code>bundle update</code> will rebuild your snapshot from scratch, using only
    the gems in your Gemfile, which may resolve the conflict.</p>
  </blockquote>
  
  <p>So I tried updating, but I was told that:</p>
  
  <blockquote>
    <p>Bundler could not find compatible versions for gem "railties":
     In Gemfile:
       rails (= 3.2.5) ruby depends on
         railties (= 3.2.5) ruby</p>
    
    <p>jquery-rails (= 2.0.0) ruby depends on
         railties (3.2.6)</p>
  </blockquote>
  
  <p>So I tried to update my gems via rvm, figuring that was the problem. (Did "rvm rubygems current"). But that didn't seem to fix anything. </p>
  
  <p>Help? Thanks!</p>