I got the below error when create the Custom Block for the HTML sitemap.

Error filtering template: Warning: Declaration of Vapor\Sitemap\Block\Sitemap\Category::_getHtml(Magento\Framework\Data\Tree\Node $menuTree, $childrenWrapClass, $limit, $colBrakes = Array) should be compatible with Magento\Theme\Block\Html\Topmenu::_getHtml(Magento\Framework\Data\Tree\Node $menuTree, $childrenWrapClass, $limit, array $colBrakes = Array) in C:\xampp\htdocs\Magento\app\code\Vapor\Sitemap\Block\Sitemap\Category.php on line 62

Block Code

namespace Vapor\Sitemap\Block\Sitemap;
// use Magento\Framework\View\Element\Template\Context;
use Magento\Framework\View\Element\Template;
// use Vapor\Sitemap\Model\Sitemap\CmsPages;
// use Vapor\Sitemap\Block\Sitemap\Cms;
// use Vapor\Sitemap\Block\Sitemap\Category;
class Index extends Template
    const SITEMAP_CUSTOM_TEMPLATE = 'Vapor_Sitemap::sitemap/sitemap.phtml';

     * [__construct]
     * @param \Magento\Framework\View\Element\Template\Context $context
     * @param \Magento\Framework\Stdlib\DateTime\Timezone      $_stdTimezone [description]
     * @param array $data
    protected $getSitemap;

    public function __construct(\Magento\Framework\View\Element\Template\Context $context,\Magento\Framework\Stdlib\DateTime\Timezone $_stdTimezone,
        array $data = [])
        parent::__construct($context, $data);


     * @return html
    protected function _toHtml()
        return parent::_toHtml();
     * @return Mixed data
    public function getSitemap()
        //echo "ComeHere";exit;
        return $this;

Can anyone help to solve this.

Any help would be appreciated.

Thanks in advance..!

  • share your block file code..such that it will be easy to debug
    – aravind
    Aug 6, 2019 at 6:59
  • @aravind Updated the Question.
    – AKM
    Aug 6, 2019 at 7:02

1 Answer 1


make your _getHtml method from the class Vapor\Sitemap\Block\Sitemap\Category look like this:

protected function _getHtml(
    \Magento\Framework\Data\Tree\Node $menuTree,
    array $colBrakes = []
) {

you are missing a type hint array on the last parameter

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