How do you migrate from doctrine-orm-module 1 to 4, wrt. annotations?

Hey,

Good day.

We currently having issues with the doctrine EntityBasedFormBuilder. This is our current setup:
```
entityManager);
$form = $builder->createForm($entity);

$hydrator = new DoctrineObject($this->entityManager, true);
$form->setHydrator($hydrator);

return $form;
}
```

The bits I am not sure of is why my ‘id’ no longer works for an existing entity? I get the following message:

```
Additional information:
Laminas\Form\Exception\InvalidElementException
File:
/var/www/html/vendor/laminas/laminas-form/src/Fieldset.php :207
Message:
No element by the name of [id] found in form
Stack trace:
#0 /var/www/html/module/Litigation/view/litigation/matter/add.phtml(83): Laminas\Form\Fieldset->get('id')
#1 /var/www/html/vendor/laminas/laminas-view/src/Renderer/PhpRenderer.php(519): include('/var/www/html/m...')
#2 /var/www/html/vendor/laminas/laminas-view/src/View.php(194): Laminas\View\Renderer\PhpRenderer->render(NULL)
#3 /var/www/html/vendor/laminas/laminas-view/src/View.php(222): Laminas\View\View->render(Object(Laminas\View\Model\ViewModel))
#4 /var/www/html/vendor/laminas/laminas-view/src/View.php(187): Laminas\View\View->renderChildren(Object(Laminas\View\Model\ViewModel))
#5 /var/www/html/vendor/laminas/laminas-mvc/src/View/Http/DefaultRenderingStrategy.php(98): Laminas\View\View->render(Object(Laminas\View\Model\ViewModel))
#6 /var/www/html/vendor/laminas/laminas-eventmanager/src/EventManager.php(319): Laminas\Mvc\View\Http\DefaultRenderingStrategy->render(Object(Laminas\Mvc\MvcEvent))
#7 /var/www/html/vendor/laminas/laminas-eventmanager/src/EventManager.php(171): Laminas\EventManager\EventManager->triggerListeners(Object(Laminas\Mvc\MvcEvent))
#8 /var/www/html/vendor/laminas/laminas-mvc/src/Application.php(360): Laminas\EventManager\EventManager->triggerEvent(Object(Laminas\Mvc\MvcEvent))
#9 /var/www/html/vendor/laminas/laminas-mvc/src/Application.php(341): Laminas\Mvc\Application->completeRequest(Object(Laminas\Mvc\MvcEvent))
#10 /var/www/html/public/index.php(31): Laminas\Mvc\Application->run()
#11 {main}
```

composer.json
```
....
"doctrine/annotations": "^1.13",
"doctrine/doctrine-orm-module": "^4.1",
"doctrine/migrations": "^3.3",
"doctrine/orm": "^2.10",
"gedmo/doctrine-extensions": "^3.4",
....
```

Any help would be much appreciated. Thanks.

Regards,
Jarrett