Fatal error: Uncaught Symfony\Component\Debug\Exception\ClassNotFoundException: Attempted to load class "DebugHandlersListener" from namespace "Symfony\Component\HttpKernel\EventListener". Did you forget a "use" statement for "Symfony\Component\HttpKernel\EventListener\DebugHandlersListener"? in /var/www/webapp/var/cache/prod/appProdProjectContainer.php:1057 Stack trace: #0 /var/www/webapp/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Container.php(329): appProdProjectContainer->getDebug_DebugHandlersListenerService() #1 /var/www/webapp/var/cache/prod/appProdProjectContainer.php(1201): Symfony\Component\DependencyInjection\Container->get('debug.debug_han...') #2 /var/www/webapp/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/EventDispatcher.php(229): appProdProjectContainer->{closure}() #3 /var/www/webapp/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/EventDispatcher.php(61): Symfony\Component\EventDispatcher\EventDispatcher->sortListeners('kernel.request') #4 /var/www/webapp/ in /var/www/webapp/var/cache/prod/appProdProjectContainer.php on line 1057