title: Error Parsing 'Gemfile'
body: <p>I am working on a learning rails project on</p>
  
  <p><a href="http://railsapps.github.io/installrubyonrails-mac.html" rel="noreferrer">http://railsapps.github.io/installrubyonrails-mac.html</a></p>
  
  <p>I am on the Rails Example Applications section, but when I run </p>
  
  <pre><code>bundle install --without production  
  </code></pre>
  
  <p>I receive this error:</p>
  
  <pre><code> [!] There was an error parsing `Gemfile`: no .&lt;digit&gt; floating literal anymore; put 0 before dot - ruby ‘2.3.0’
                ^
      /Users/eric.park/workspace/learn-rails/Gemfile:2: syntax error, unexpected tFLOAT, expecting '('
      ruby ‘2.3.0’
                   ^. Bundler cannot continue.
  
       #  from /Users/eric.park/workspace/learn-rails/Gemfile:2
       #  -------------------------------------------
       #  source 'https://rubygems.org'
       &gt;  ruby ‘2.3.0’
       #  gem 'rails', '4.2.5'
       #  -------------------------------------------
  </code></pre>
  
  <p>I am new to rails, so if anyone can explain what this error generally means, and how I can address it if it shows up again that would be really helpful. </p>