Fatal error: Uncaught Error: Class "Symfony\Component\Console\Command\Command" not found in D:\Application\www\E-Tracking\vendor\symfony\console\Tests\Fixtures\FooLockCommand.php:8 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\symfony\console\Tests\Fixtures\FooLockCommand.php on line 8