Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Loader\Configurator\AbstractConfigurator" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\dependency-injection\Loader\Configurator\ContainerConfigurator.php:29 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\dependency-injection\Loader\Configurator\ContainerConfigurator.php on line 29