Warning: Unsupported declare 'strict_types' in C:\Apache24\htdocs\drupal\core\tests\Drupal\Tests\Core\Routing\TestRouterInterface.php on line 3

Fatal error: Interface 'Symfony\Component\Routing\RouterInterface' not found in C:\Apache24\htdocs\drupal\core\tests\Drupal\Tests\Core\Routing\TestRouterInterface.php on line 13