Fatal error: Uncaught Error: Class "Spatie\LaravelPackageTools\PackageServiceProvider" not found in C:\xampp\htdocs\emailer2close\vendor\spatie\laravel-pdf\src\PdfServiceProvider.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\emailer2close\vendor\spatie\laravel-pdf\src\PdfServiceProvider.php on line 21