Fatal error: Class 'Symfony\Component\Console\Event\ConsoleEvent' not found in /var/www/html/dev/spa/vendor/symfony/console/Symfony/Component/Console/Event/ConsoleTerminateEvent.php on line 24

Call Stack:
    0.0075     238096   1. {main}() /var/www/html/dev/spa/vendor/symfony/console/Symfony/Component/Console/Event/ConsoleTerminateEvent.php:0