Fatal error: Uncaught exception 'Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException' with message 'You have requested a non-existent parameter "kernel.bundles_metadata".' in /home/tribunad/hs_project/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/ParameterBag/ParameterBag.php:84 Stack trace: #0 /home/tribunad/hs_project/app/bootstrap.php.cache(2101): Symfony\Component\DependencyInjection\ParameterBag\ParameterBag->get('kernel.bundles_...') #1 /home/tribunad/hs_project/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php(824): Symfony\Component\DependencyInjection\Container->getParameter('kernel.bundles_...') #2 /home/tribunad/hs_project/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php(776): Symfony\Bundle\FrameworkBundle\DependencyInjection\FrameworkExtension->getValidatorMappingFiles(Object(Symfony\Component\DependencyInjection\ContainerBuilder)) #3 /home/tribunad/hs_project/vendor in /home/tribunad/hs_project/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/ParameterBag/ParameterBag.php on line 84