Fatal error: Uncaught Error: Interface "Symfony\Component\Workflow\Dumper\DumperInterface" not found in D:\xampp\htdocs\pimcore\my-project\vendor\symfony\workflow\Dumper\PlantUmlDumper.php:28 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\symfony\workflow\Dumper\PlantUmlDumper.php on line 28