phpbb\convert\controller\convertor::render_error PHP Method

    public function render_error($msg, $desc = false)
    {
        if ($this->request->is_ajax()) {
            $this->iohandler->add_error_message($msg, $desc);
            $this->iohandler->send_response(true);
        } else {
            $this->template->assign_vars(array('S_ERROR_BOX' => true, 'ERROR_TITLE' => $this->language->lang($msg)));
            if ($desc) {
                $this->template->assign_var('ERROR_MSG', $this->language->lang($desc));
            }
        }
    }