Fatal error: Uncaught Error: Class "Symfony\Component\Console\Command\Command" not found in C:\xampp\htdocs\my-app\my-new-app\vendor\symfony\var-dumper\Command\ServerDumpCommand.php:39 Stack trace: #0 {main} thrown in C:\xampp\htdocs\my-app\my-new-app\vendor\symfony\var-dumper\Command\ServerDumpCommand.php on line 39