Not a bug: Icon_image_error

2.0.1, php 8.3.8
I do know what generated the problem but message stack is glitching trying to display and simply stops due the message_stack.php file.

PHP Fatal error: Uncaught Error: Undefined constant "ICON_IMAGE_ERROR" in /includes/classes/message_stack.php:167
Stack trace:
#0 /includes/classes/message_stack.php(30): messageStack->getDefaultFormats()
#1 /includes/autoload_func.php(47): messageStack->__construct()
#2 /includes/application_top.php(253): require('/home...../2...')
#3 /index.php(25): require('/home/...../2...')
#4 {main}
thrown in /includes/classes/message_stack.php on line 167

that line is

PHP Code:

---

 'error' => [
                'params' => 'class="messageStackError larger"',
                'icon' => zen_image($template->get_template_dir(ICON_IMAGE_ERROR, DIR_WS_TEMPLATE, $current_page_base,'images/icons'). '/' . ICON_IMAGE_ERROR, ICON_ERROR_ALT),
            ], 


---

and there is no define for that beyond english file for error.png

The subsequent lines also define icons so it potentially affects more situations.

For now, just set the 'icon' field to empty so we can see what the real root cause is.

'error' => [
'params' => 'class="messageStackError larger"',
'icon' => '',
],

well, that was interesting. I did have to do each line but the next error is:

] PHP Fatal error: Uncaught Error: Undefined constant "HEADER_TITLE_CATALOG" in /includes/init_includes/init_add_crumbs.php:14
Stack trace:
#0 /includes/autoload_func.php(40): require_once()
#1 /includes/application_top.php(253): require('/home/.../2...')
#2 /index.php(25): require('/home/.../2...')
#3 {main}
thrown in /includes/init_includes/init_add_crumbs.php on line 1

The file that started all this was an override of the init_templates.php (trying to get the template switcher to work on 2.0). But I really don't know enough about the init files. Can a change in one impact the other? Wouldn't think so but...

I don't know what the template switcher is - a search in the plugins library doesn't bring up anything.

Does this help?

https://docs.zen-cart.com//user/temp...ivate_testing/

No, actually. This is for demo sites only and I do have it working on a 1.5.7 site. It was originally written for 1.3.8! https://www.zen-cart.com/downloads.php?do=file&id=794 It's a good way to showcase different templates. If minor edits won't work this time, I need to give up but would prefer not to. So do you think my changes to init_templates.php can cause problems with other init files?

This uses the old language file handling. It's not going to work unless you fix that.

agreed but I rely on error, fix, error - not fixing first! But due to this issue with the icon_image, I can't get to the next error. Is this an issue with 2.0 or not?

It is not an issue with 2.0. This is an issue with an old plugin that would need to be updated to work with 1.5.8+.

You can look at a copy of includes/init_includes/init_templates.php from 2.0 and see how different it is from the file in the overrides folder in this plugin.