ClassNotFoundError Template One after upgrade to Joomla 5

[udospr]

Hi, I updated Astroid and Tempate One to version 3.0.11 and upgraded Joomla to version 5.0.3 This results in an error when the Backwards Compatibility plugin is unpublished. Class "JHtml" not found Location: JROOT\templates\astroid_template_one\html\mod_menu\default_component.php:43

The lines 34-50 of this file are:

if ($item->menu_image)
{
    if ($item->menu_image_css)
    {
        $image_attributes['class'] = $item->menu_image_css;
        $linktype = JHtml::_('image', $item->menu_image, $item->title, $image_attributes);
    }
    else
    {
        $linktype = JHtml::_('image', $item->menu_image, $item->title);
    }

    if ($item->getParams()->get('menu_text', 1))
    {
        $linktype .= '<span class="image-title">' . $item->title . '</span>';
    }
}

When using a child template of Temple One I get this in the stack trace

Symfony\Component\ErrorHandler\Error\ClassNotFoundError:
Attempted to load class "JHtml" from the global namespace.
Did you forget a "use" statement?

at C:\xampp\htdocs\stenen\templates\astroid_template_one\html\mod_menu\default_component.php:43

When I comment out lines 41-44 (else ..... } ) the problem is gone.

How to solve this problem?

[sonvnn]

Thank you! I will soon update One to latest.

[udospr]

Alas, this 'solution' created a big problem afer updating Template One to version 3.0.12 The override templates\astroid_template_one\html\mod_menu\default_component.php now has only 1 line:

require Astroid\Helper\Overrides::getHTMLTemplate();

The result is a fatal error ERROR 0 - Failed opening required '\mod_menu\default_component.php'

So I had to downgrade to Template One 3.0.11 and activate the Backwards Compatibility plugin. Please advise.

Udo

[udospr]

Latest news: I replaced the line require Astroid\Helper\Overrides::getHTMLTemplate(); by the code of the original file mod_menu\default_component.php and now it seems to work fine.