Support creating entities

I have been messing with this for a while.

From what I can see, you cannot create new entities, even if the reference field is set to do that.

The form is there to add a new entity. But it throws an ajax error in the js console.

[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (edit, line 0)
[Error] AjaxError: 
An AJAX HTTP error occurred.
HTTP Result Code: 500
Debugging information follows.
Path: /node/2/edit?ajax_form=1
StatusText: Internal Server Error
ResponseText: The website encountered an unexpected error. Please try again later.
	(anonymous function) (js_E-PluqRkPYBpQNMkwlIH8AvocHf0XJoRhj1lJ40izzM.js:264:13136)
	complete (js_E-PluqRkPYBpQNMkwlIH8AvocHf0XJoRhj1lJ40izzM.js:264:5845)
	(anonymous function) (js_E-PluqRkPYBpQNMkwlIH8AvocHf0XJoRhj1lJ40izzM.js:309:3569)
	c (js_E-PluqRkPYBpQNMkwlIH8AvocHf0XJoRhj1lJ40izzM.js:3:25272)
	fireWith (js_E-PluqRkPYBpQNMkwlIH8AvocHf0XJoRhj1lJ40izzM.js:3:26017)
	l (js_E-PluqRkPYBpQNMkwlIH8AvocHf0XJoRhj1lJ40izzM.js:3:77858)
	(anonymous function) (js_E-PluqRkPYBpQNMkwlIH8AvocHf0XJoRhj1lJ40izzM.js:3:80206)

I assumed it was a conflict with another module, so I installed a plain 10.1.6 with zero contrib modules other than this one. I created an entity reference field and could create and reference both existing, and new nodes. So it works fine using the default Drupal widget.

I added the dev version of entityqueue and set the form to use it on that field.

It fails every time.

Here is some more info:

PHP 8.1.12
Apache 2.4.55
db is 10.11.2-MariaDB
Memory is set to 256MB

I would REALLY like to get this module working. It is an ideal solution for my site.

Any input is welcome. Am I really the only one running into this?

I just installed a plain vanilla Drupal via composer on a site with no CDN or Varnish or anything. I created two articles. I have added a reference field to the basic page content type to allow selecting articles, with the option to create new ones.

It totally failed with the exact same error.

So, for Drupal 10.1.6, the ability for Entityqueue to allow adding nodes is totally broken.

I am not great at troubleshooting ajax stuff like this, so I don't know how to fix this.

I will set this to a high priority because an essential functionality in core breaks when using this as a widget.

I will leave the site I made to test this up. If anyone wants to log in and mess around, I would happily provide the needed info.

I was able to get exactly what I needed from IEF (better, actually), but I would be willing to test any fixes for this.