Fatal error: Uncaught Error: Interface 'Symfony\Component\Config\Loader\LoaderResolverInterface' not found in C:\Landaweb\webs\landaweb\backend\vendor\symfony\config\Loader\LoaderResolver.php:22 Stack trace: #0 {main} thrown in C:\Landaweb\webs\landaweb\backend\vendor\symfony\config\Loader\LoaderResolver.php on line 22