Fatal error: Uncaught Error: Class "Symfony\Component\Console\Descriptor\Descriptor" not found in /home2/yiikharazmisabt/public_html/yii2-app/vendor/symfony/console/Descriptor/MarkdownDescriptor.php:29 Stack trace: #0 {main} thrown in /home2/yiikharazmisabt/public_html/yii2-app/vendor/symfony/console/Descriptor/MarkdownDescriptor.php on line 29