Fatal error: Uncaught Error: Class 'Symfony\Component\VarDumper\Dumper\AbstractDumper' not found in D:\xampp\htdocs\psp\backend\vendor\symfony\var-dumper\Dumper\CliDumper.php:22 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\symfony\var-dumper\Dumper\CliDumper.php on line 22