Fatal error: Uncaught Error: Interface "Symfony\Component\Console\CommandLoader\CommandLoaderInterface" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\console\CommandLoader\FactoryCommandLoader.php:21 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\console\CommandLoader\FactoryCommandLoader.php on line 21