Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\ParameterBag" not found in /Applications/MAMP/htdocs/fislo/vendor/symfony/http-foundation/InputBag.php:22 Stack trace: #0 {main} thrown in /Applications/MAMP/htdocs/fislo/vendor/symfony/http-foundation/InputBag.php on line 22