Fatal error: Uncaught Error: Class 'Symfony\Component\VarDumper\Caster\ConstStub' not found in C:\xampp\htdocs\plugins\Symfony\Component\VarDumper\Caster\UninitializedStub.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\plugins\Symfony\Component\VarDumper\Caster\UninitializedStub.php on line 19