Fatal error: Uncaught Error: Class 'Symfony\Component\VarDumper\Dumper\HtmlDumper' not found in C:\Apache24\htdocs\vendor.old\laravel\framework\src\Illuminate\Support\Debug\HtmlDumper.php:7 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\vendor.old\laravel\framework\src\Illuminate\Support\Debug\HtmlDumper.php on line 7