Fatal error: Uncaught Error: Interface "Symfony\Component\Console\Completion\Output\CompletionOutputInterface" not found in /home2/santhos2/public_html/kannan.firstmatrix.in.net/core/vendor/symfony/console/Completion/Output/BashCompletionOutput.php:20 Stack trace: #0 {main} thrown in /home2/santhos2/public_html/kannan.firstmatrix.in.net/core/vendor/symfony/console/Completion/Output/BashCompletionOutput.php on line 20