Fatal error: Uncaught Error: Interface "Symfony\Component\Console\Completion\Output\CompletionOutputInterface" not found in D:\xampp\htdocs\ebaymotors\vendor\symfony\console\Completion\Output\BashCompletionOutput.php:20 Stack trace: #0 {main} thrown in D:\xampp\htdocs\ebaymotors\vendor\symfony\console\Completion\Output\BashCompletionOutput.php on line 20