error with Entity Reference fields

you should setup in widget and formatter (just click setting and save)

Thanks for the quick reply.

The rows are there, but there is no autocomplete widget to choose the entites from on the node/add page. see dataField screenshot. There is also warning

Location	/node/add/article?_wrapper_format=drupal_ajax&ajax_form=1
Referrer	/node/add/article
Warning: Undefined array key "label_display" in Drupal\datafield\Plugin\Field\FieldWidget\DataField->formElement() (line 43 of /home/xyz/public_html/staging/web/modules/contrib/datafield/src/Plugin/Field/FieldWidget/DataField.php)
#0 /home/xyz/public_html/staging/web/core/includes/bootstrap.inc(347): _drupal_error_handler_real()
#1 /home/colljgpc/public_html/staging/web/modules/contrib/datafield/src/Plugin/Field/FieldWidget/DataField.php(43): _drupal_error_handler()
#2 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Field/WidgetBase.php(353): Drupal\datafield\Plugin\Field\FieldWidget\DataField->formElement()
#3 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Field/WidgetBase.php(220): Drupal\Core\Field\WidgetBase->formSingleElement()
#4 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Field/WidgetBase.php(111): Drupal\Core\Field\WidgetBase->formMultipleElements()
#5 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Entity/Entity/EntityFormDisplay.php(183): Drupal\Core\Field\WidgetBase->form()
#6 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Entity/ContentEntityForm.php(121): Drupal\Core\Entity\Entity\EntityFormDisplay->buildForm()
#7 /home/colljgpc/public_html/staging/web/core/modules/node/src/NodeForm.php(127): Drupal\Core\Entity\ContentEntityForm->form()
#8 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Entity/EntityForm.php(106): Drupal\node\NodeForm->form()
#9 [internal function]: Drupal\Core\Entity\EntityForm->buildForm()
#10 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Form/FormBuilder.php(534): call_user_func_array()
#11 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Form/FormBuilder.php(373): Drupal\Core\Form\FormBuilder->retrieveForm()
#12 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Form/FormBuilder.php(631): Drupal\Core\Form\FormBuilder->rebuildForm()
#13 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Form/FormBuilder.php(323): Drupal\Core\Form\FormBuilder->processForm()
#14 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Controller/FormController.php(73): Drupal\Core\Form\FormBuilder->buildForm()
#15 /home/colljgpc/public_html/staging/web/core/modules/layout_builder/src/Controller/LayoutBuilderHtmlEntityFormController.php(39): Drupal\Core\Controller\FormController->getContentResult()
#16 [internal function]: Drupal\layout_builder\Controller\LayoutBuilderHtmlEntityFormController->getContentResult()
#17 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array()
#18 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Render/Renderer.php(580): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#19 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext()
#20 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext()
#21 /home/colljgpc/public_html/staging/vendor/symfony/http-kernel/HttpKernel.php(169): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#22 /home/colljgpc/public_html/staging/vendor/symfony/http-kernel/HttpKernel.php(81): Symfony\Component\HttpKernel\HttpKernel->handleRaw()
#23 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/StackMiddleware/Session.php(58): Symfony\Component\HttpKernel\HttpKernel->handle()
#24 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\Core\StackMiddleware\Session->handle()
#25 /home/colljgpc/public_html/staging/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\Core\StackMiddleware\KernelPreHandle->handle()
#26 /home/colljgpc/public_html/staging/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass()
#27 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\page_cache\StackMiddleware\PageCache->handle()
#28 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle()
#29 /home/colljgpc/public_html/staging/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle()
#30 /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/DrupalKernel.php(713): Stack\StackedHttpKernel->handle()
#31 /home/colljgpc/public_html/staging/web/index.php(19): Drupal\Core\DrupalKernel->handle()
#32 {main}
.

When I now go back and try to select the entity type, i get an unspecified error and white screen.

The error log shows this:

admin/structure/types/manage/article/fields/node.article.field_testing
Referrer	/admin/structure/types/manage/article/fields
Message	InvalidArgumentException: Missing required #autocreate['bundle'] parameter. in Drupal\Core\Entity\Element\EntityAutocomplete::processEntityAutocomplete() (line 167 of /home/colljgpc/public_html/staging/web/core/lib/Drupal/Core/Entity/Element/EntityAutocomplete.php).

You make me confuse
First step

when back i have bundle

there ain't error in my test

ok, then i misunderstood you. now it works.

I needed to
1) create the datafield
2) in the second step (where one can give the datafield a label), select for example "Content" as "entity reference type"
3) click "Save settings"
4) go back to 2
5) refresh the page (only afterwards the bundle "article" showed up in my case) and set the bundle
6) in "manage form display" go to the widget's details (e.g. autocomplete) and click "update"

I did not make step 6, so nothing showed up.

thanks for this useful module

First of all I would like to thank the builder of this module. This is a beautiful module with huge potential.

Is there already a solution for this problem? I tested the module in Drupal 10. PHP 8.1. Most of the fields I've tried so far work flawlessly.

However, I can't get the entity reference to work. In the first part I set the fields for the database, then I tried with both multiple values and limited values1. The next step I tried to select both entity reference and taxonomy term. There is a description : Save and back again to select bundle. When I save, I can't return, a white page with error appears : The website encountered an unexpected error. Please try again later.

I have added the data field to an article. Existing articles can no longer be edited. New articles can no longer be created. When I check the database, the table is created, but I don't see a column with target id.

The log message states the following:
InvalidArgumentException: Missing required #autocreate['bundle'] parameter.

Hi you can check dev version it fixed in custom entity type, I think