Fatal error: Uncaught Error: Class "Symfony\Component\VarDumper\Cloner\VarCloner" not found in I:\www\frameworks\Laravel\vendor\psy\psysh\src\VarDumper\Cloner.php:21 Stack trace: #0 {main} thrown in I:\www\frameworks\Laravel\vendor\psy\psysh\src\VarDumper\Cloner.php on line 21