title: Call to undefined function set_flashdata() in codeigniter
body: <p>I have tried to use <code>set_flashdata()</code> inside my controller as </p>
  
  <p><code>$this-&gt;session-&gt;set_flashdata('para',$project_id);</code></p>
  
  <p>but I am getting error  </p>
  
  <blockquote>
    <p>Call to undefined function set_flashdata()</p>
  </blockquote>
  
  <p>I have already added session inside autoload file like</p>
  
  <pre><code>$autoload['libraries'] = array('database', 'session', 'Pagination','form_validation');
  </code></pre>
  
  <p>please help me to solve the problem.</p>