Fatal error: Uncaught Error: Class "Symfony\Component\Routing\Loader\ObjectRouteLoader" not found in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\routing\Loader\DependencyInjection\ServiceRouterLoader.php:27 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\routing\Loader\DependencyInjection\ServiceRouterLoader.php on line 27