Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Loader\FileLoader" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\dependency-injection\Loader\IniFileLoader.php:22 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\dependency-injection\Loader\IniFileLoader.php on line 22