/**
  * @param string     $message
  * @param int        $code
  * @param \Exception $previous
  */
 public function __construct($message = "", $code = 0, \Exception $previous = null)
 {
     $message = 'No reference found' . (empty($message) ? '' : ': ' . $message);
     parent::__construct($message, $code, $previous);
 }
 /**
  * @param string     $message
  * @param int        $code
  * @param \Exception $previous
  */
 public function __construct($message = "", $code = 0, \Exception $previous = null)
 {
     $message = 'Invalid item' . (empty($message) ? '' : ': ' . $message);
     parent::__construct($message, $code, $previous);
 }