Fatal error: Uncaught Error: Class "Symfony\Component\Console\Event\ConsoleEvent" not found in /home2/yiikharazmisabt/public_html/yii2-app/vendor/symfony/console/Event/ConsoleTerminateEvent.php:23 Stack trace: #0 {main} thrown in /home2/yiikharazmisabt/public_html/yii2-app/vendor/symfony/console/Event/ConsoleTerminateEvent.php on line 23