Fatal error: Uncaught Error: Class "Symfony\Component\OptionsResolver\OptionsResolver" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\form\Util\OptionsResolverWrapper.php:23 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\form\Util\OptionsResolverWrapper.php on line 23