Fatal error: Uncaught Error: Class 'Symfony\Component\Routing\RouteCollection' not found in C:\SistemasPHP\observatorio4\vendor\symfony-cmf\routing\src\ChainRouteCollection.php:18 Stack trace: #0 {main} thrown in C:\SistemasPHP\observatorio4\vendor\symfony-cmf\routing\src\ChainRouteCollection.php on line 18