Warning: Unsupported declare 'strict_types' in C:\Apache24\htdocs\drupal\core\lib\Drupal\Core\Render\Attribute\FormElement.php on line 3

Fatal error: Class 'Drupal\Core\Render\Attribute\RenderElement' not found in C:\Apache24\htdocs\drupal\core\lib\Drupal\Core\Render\Attribute\FormElement.php on line 26