Fatal error: Uncaught Error: Class "Symfony\Component\Console\Output\Output" not found in /home2/yiikharazmisabt/public_html/yii2-app/vendor/symfony/console/Output/BufferedOutput.php:17 Stack trace: #0 {main} thrown in /home2/yiikharazmisabt/public_html/yii2-app/vendor/symfony/console/Output/BufferedOutput.php on line 17