Fatal error: Uncaught Error: Interface "PhpParser\Serializer" not found in /home/www/swittelecom.com/test/laravel/vendor/nikic/php-parser/lib/PhpParser/Serializer/XML.php:13 Stack trace: #0 {main} thrown in /home/www/swittelecom.com/test/laravel/vendor/nikic/php-parser/lib/PhpParser/Serializer/XML.php on line 13