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

Fatal error: Class 'Drupal\Component\Plugin\Attribute\Plugin' not found in C:\Apache24\htdocs\drupal\core\lib\Drupal\Core\Render\Attribute\RenderElement.php on line 28