Fatal error: Uncaught Error: Class "Symfony\Component\Console\Command\Command" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\security-bundle\Command\DebugFirewallCommand.php:31 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\security-bundle\Command\DebugFirewallCommand.php on line 31