Fatal error: Uncaught Error: Class 'Symfony\Component\VarDumper\Dumper\HtmlDumper' not found in E:\xampp\htdocs\www\key\vendor\laravel\framework\src\Illuminate\Support\Debug\HtmlDumper.php:7 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\key\vendor\laravel\framework\src\Illuminate\Support\Debug\HtmlDumper.php on line 7