Fatal error: Uncaught Error: Class 'Symfony\Component\VarDumper\Dumper\CliDumper' not found in C:\xampp73\htdocs\web\vendor\psy\psysh\src\VarDumper\Dumper.php:21 Stack trace: #0 {main} thrown in C:\xampp73\htdocs\web\vendor\psy\psysh\src\VarDumper\Dumper.php on line 21