Warning: Unsupported declare 'strict_types' in C:\Apache24\htdocs\drupal\core\modules\system\src\Tests\Routing\MockRouteProvider.php on line 3

Fatal error: Interface 'Drupal\Core\Routing\RouteProviderInterface' not found in C:\Apache24\htdocs\drupal\core\modules\system\src\Tests\Routing\MockRouteProvider.php on line 15