Fatal error: Uncaught Error: Class "Symfony\Component\Config\Loader\FileLoader" not found in C:\xampp\htdocs\desarrollos\Pruebas\lpt-pkg-demo-pwa\vendor\symfony\routing\Loader\YamlFileLoader.php:30 Stack trace: #0 {main} thrown in C:\xampp\htdocs\desarrollos\Pruebas\lpt-pkg-demo-pwa\vendor\symfony\routing\Loader\YamlFileLoader.php on line 30