Fatal error: Uncaught Error: Interface "PhpParser\Serializer" not found in D:\Application\www\Training\vendor\nikic\php-parser\lib\PhpParser\Serializer\XML.php:13 Stack trace: #0 {main} thrown in D:\Application\www\Training\vendor\nikic\php-parser\lib\PhpParser\Serializer\XML.php on line 13