Fatal error: Uncaught Error: Trait "Symfony\Component\Routing\Loader\Configurator\Traits\AddTrait" not found in /home/guillaw/Avimmo/vendor/symfony/routing/Loader/Configurator/RouteConfigurator.php:19 Stack trace: #0 {main} thrown in /home/guillaw/Avimmo/vendor/symfony/routing/Loader/Configurator/RouteConfigurator.php on line 19