title: Aptana Studio php files not opening in PHP Editor
body: <p>I just started using Aptana Studio. The first thing I did was import my php from svn repository and install the PDT tools. But whenever I open the php file, it always displays following message.</p>
  
  <p><img src="https://i.stack.imgur.com/QkpyH.png" alt="alt text"></p>
  
  <p>I had the PHP perspective open when I tried opening the file. Also I checked the Content Types and File Associations, where PHP Content Type has <code>*.php</code> listed and <code>*.php</code> had the <code>PHP Editor</code> associated with it in the file associations.</p>
  
  <p>I even tried creating a new PHP project, then creating a new PHP file - couldn't even do that - nothing showed up.</p>
  
  <p>What am I missing over here?</p>
  
  <p>Regards</p>