Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Exception\InvalidArgumentException" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\dependency-injection\Exception\EnvNotFoundException.php:19 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\dependency-injection\Exception\EnvNotFoundException.php on line 19