title: Can't upload image using Paperclip 4.0 Rails 3
body: <p>I've installed ImageMagick and I've installed the gem Paperclip (version 4.0). I've added:</p>
  
  <pre><code>Paperclip.options[:command_path] = 'C:\Program Files\ImageMagick-6.8.8-Q16'
  </code></pre>
  
  <p>to the development.rb</p>
  
  <p>My photo.rb Model has this:</p>
  
  <pre><code>has_attached_file :image
  validates_attachment_content_type :image, :content_type =&gt; ['image/jpeg', 'image/png', 'image/jpg']
  </code></pre>
  
  <p>I can choose a file in photos/new.html.erb but once I click on 'Create photo' button, the page reloads with a Paperclip specific error message saying:</p>
  
  <pre><code>1 error prohibited this photo from being saved:
  Image translation missing: 
  en.activerecord.errors.models.photo.attributes.image.spoofed_media_type
  </code></pre>
  
  <p>Can someone help please?
  Thanks</p>