Messaggio di errore
Warning: count(): Parameter must be an array or an object that implements Countable in
Drupal\Core\Form\FormValidator->doValidateForm() (line
256 of
core/lib/Drupal/Core/Form/FormValidator.php).
Drupal\Core\Form\FormValidator->doValidateForm(Array, Object) (Line: 235)
Drupal\Core\Form\FormValidator->doValidateForm(Array, Object, 'views_exposed_form') (Line: 119)
Drupal\Core\Form\FormValidator->validateForm('views_exposed_form', Array, Object) (Line: 571)
Drupal\Core\Form\FormBuilder->processForm('views_exposed_form', Array, Object) (Line: 314)
Drupal\Core\Form\FormBuilder->buildForm('views_exposed_form', Object) (Line: 135)
Drupal\views\Plugin\views\exposed_form\ExposedFormPluginBase->renderExposedForm() (Line: 1224)
Drupal\views\ViewExecutable->build(NULL) (Line: 1377)
Drupal\views\ViewExecutable->execute(NULL) (Line: 1440)
Drupal\views\ViewExecutable->render() (Line: 117)
Drupal\views\Plugin\views\display\Block->execute() (Line: 1616)
Drupal\views\ViewExecutable->executeDisplay('block_1', Array) (Line: 78)
Drupal\views\Element\View::preRenderViewElement(Array) (Line: 59)
Drupal\views\Plugin\Block\ViewsBlock->build() (Line: 89)
Drupal\ds\Plugin\DsField\BlockBase->build() (Line: 365)
ds_entity_view_alter(Array, Object, Object) (Line: 501)
Drupal\Core\Extension\ModuleHandler->alter('node_view', Array, Object, Object) (Line: 285)
Drupal\Core\Entity\EntityViewBuilder->buildMultiple(Array) (Line: 220)
Drupal\Core\Entity\EntityViewBuilder->build(Array)
call_user_func(Array, Array) (Line: 376)
Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 195)
Drupal\Core\Render\Renderer->render(Array, ) (Line: 226)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 574)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 227)
Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object, Object) (Line: 117)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object, Object) (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object) (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch('kernel.view', Object) (Line: 149)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 64)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 207)
Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 121)
Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 75)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 50)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 656)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
