title: Session::instance() after session_start - Kohana (v.3.2)
body: <p>I'm using Kohana's Session class without problems, but now I'm facing a special situation.
  In my script I have to load a vendor class, which somewhere is calling <code>session_start</code>.</p>
  
  <p>Later in the code I need to call Session::instance(), and this is resulting in a <code>Error reading session data.</code> exception.</p>
  
  <p>I can't modify the vendor code (just to be concrete it is the facebook php sdk, and I don't want to modify it), and I have to call <code>Session::instance()</code> later.</p>
  
  <p>How to solve this situation?</p>
  
  <p>You have to know, that a simple </p>
  
  <pre><code>&lt;?php
  session_start();
  Session::instance();
  ?&gt;
  </code></pre>
  
  <p>will produce the same exception.
  I think this is a bug in Kohana 3.2, but I need to trick it some way.</p>
  
  <p>To learn more about the <code>Session</code> class, check this out: <a href="http://kohanaframework.org/3.2/guide/api/Session" rel="nofollow">http://kohanaframework.org/3.2/guide/api/Session</a></p>
  
  <p>Btw, I'm using the default, native session class.</p>