title: rails console fails with `Switch to inspect mode` in windows
body: <p>I create a rails project by <code>rails new foo</code>, then <code>cd foo</code>, and run <code>rails c</code>.</p>
  
  <p>Then I got message like this.</p>
  
  <pre><code>DL is deprecated, please use Fiddle
  Loading development environment (Rails 4.0.2)
  Switch to inspect mode.
  </code></pre>
  
  <p>That's all. I can't use rails console.</p>
  
  <p>Have you any idea what am I doing wrong?</p>
  
  <p>I'm using <code>railsinstaller</code> with ruby 1.9.3 and 2.0.0 both, and <code>ruby 2.0.0p451 (2014-02-24) [i386-mingw32]</code> from Rubyinstaller. All versions fails with same error.</p>
  
  <p>There is no problem with simple <code>irb</code> command.</p>
  
  <h3>Edit</h3>
  
  <p>By following Graeme's advice, I updated <code>rb-readline</code> from <code>0.5.0</code> to <code>0.5.1</code>. and uninstalled old one.</p>
  
  <pre><code>$ gem list | grep rb-readline
  rb-readline (0.5.1)
  </code></pre>
  
  <p>But the message remains same.</p>