diff -u b/core/modules/inline_form_errors/src/FormElementDeterminer.php b/core/modules/inline_form_errors/src/FormElementDeterminer.php
--- b/core/modules/inline_form_errors/src/FormElementDeterminer.php
+++ b/core/modules/inline_form_errors/src/FormElementDeterminer.php
@@ -68,8 +68,8 @@
     $element_definitions = $this->elementInfoManager->getDefinitions();
 
     if (!empty($element_definitions[$element_type])) {
-      $element = $this->elementInfoManager->createInstance($element_type);
-      return $element instanceof FormElementInterface;
+      $interfaces = class_implements($element_definitions[$element_type]['class']);
+      return isset($interfaces['Drupal\Core\Render\Element\FormElementInterface']);
     }
 
     return FALSE;
diff -u b/core/modules/inline_form_errors/tests/src/Unit/FormElementDeterminerTest.php b/core/modules/inline_form_errors/tests/src/Unit/FormElementDeterminerTest.php
--- b/core/modules/inline_form_errors/tests/src/Unit/FormElementDeterminerTest.php
+++ b/core/modules/inline_form_errors/tests/src/Unit/FormElementDeterminerTest.php
@@ -37,20 +37,10 @@
     $element_info_manager->expects($this->any())
       ->method('getDefinitions')
       ->willReturn([
-        'form_element_type' => ['form_element_definition'],
-        'element_type' => ['element_definition'],
+        'form_element_type' => ['class' => '\Drupal\Core\Render\Element\FormElement'],
+        'element_type' => ['class' => '\Drupal\Core\Render\Element\RenderElement'],
       ]);
 
-    $element_info_manager->expects($this->at(1))
-      ->method('createInstance')
-      ->with('form_element_type')
-      ->willReturn($this->getMock(FormElementInterface::class));
-
-    $element_info_manager->expects($this->at(3))
-      ->method('createInstance')
-      ->with('element_type')
-      ->willReturn($this->getMock(ElementInterface::class));
-
     $form_element_determiner = new FormElementDeterminer($element_info_manager);
 
     // Test that an element implementing FormElementInterface is detected.