Following fatal error occurs, when try to generate content via devel_generate when having a paragraphs field included in content type. Maybe this is more a paragraphs related problem or not.
The website encountered an unexpected error. Please try again later.
InvalidArgumentException: Value is not a valid entity. in Drupal\entity_reference_revisions\Plugin\DataType\EntityReferenceRevisions->setValue() (line 118 of modules/contrib/entity_reference_revisions/src/Plugin/DataType/EntityReferenceRevisions.php).
Drupal\Core\Field\FieldItemBase->writePropertyValue('entity', Array)
Drupal\entity_reference_revisions\Plugin\Field\FieldType\EntityReferenceRevisionsItem->onChange('target_id', )
Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem->setValue(Array, )
Drupal\entity_reference_revisions\Plugin\Field\FieldType\EntityReferenceRevisionsItem->setValue(Array, )
Drupal\Core\TypedData\TypedDataManager->getPropertyInstance(Object, 0, Array)
Drupal\Core\Field\FieldTypePluginManager->createFieldItem(Object, 0, Array)
Drupal\Core\Field\FieldItemList->createItem(0, Array)
Drupal\Core\TypedData\Plugin\DataType\ItemList->setValue(Array, 1)
Drupal\Core\Field\FieldItemList->setValue(Array)
Drupal\Core\Field\FieldItemList->generateSampleItems(3)
Drupal\devel_generate\DevelGenerateBase::populateFields(Object)
Drupal\devel_generate\Plugin\DevelGenerate\ContentDevelGenerate->develGenerateContentAddNode(Array)
Drupal\devel_generate\Plugin\DevelGenerate\ContentDevelGenerate->generateContent(Array)
Drupal\devel_generate\Plugin\DevelGenerate\ContentDevelGenerate->generateElements(Array)
Drupal\devel_generate\DevelGenerateBase->generate(Array)
Drupal\devel_generate\Form\DevelGenerateForm->submitForm(Array, Object)
call_user_func_array(Array, Array)
Drupal\Core\Form\FormSubmitter->executeSubmitHandlers(Array, Object)
Drupal\Core\Form\FormSubmitter->doSubmitForm(Array, Object)
Drupal\Core\Form\FormBuilder->processForm('devel_generate_form_content', Array, Object)
Drupal\Core\Form\FormBuilder->buildForm(Object, Object)
Drupal\Core\Controller\FormController->getContentResult(Object, Object)
call_user_func_array(Array, Array)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
call_user_func_array(Object, Array)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1)
Drupal\devel\StackMiddleware\DevelMiddleware->handle(Object, 1, 1)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1)
Stack\StackedHttpKernel->handle(Object, 1, 1)
Drupal\Core\DrupalKernel->handle(Object)