title: Controller is not found in CodeIgniter?
body: <p>Home page link is:</p>
  
  <pre><code>&lt;a href="view_pre_read/?tid=22"&gt;Click here to go&lt;/a&gt;
  </code></pre>
  
  <p>routing code is:</p>
  
  <pre><code>$route['view_pre_read/(:any)'] = 'view_pre_read/$1';
  $route['view_pre_read'] = 'view_pre_read';
  </code></pre>
  
  <p>and my controller is:</p>
  
  <pre><code>class View_pre_read extends CI_Controller {
  
      function index(){
          $tid=$_REQUEST['tid'];
              $this-&gt;load-&gt;view('pages/notopic',$data);
      }
  
  }
  </code></pre>
  
  <p>but its always going to call 404 error page;</p>
  
  <p>Please any one help me how to overcome this
  Thanks in advance.</p>