Fatal error: Uncaught Error: Class "Illuminate\Validation\ValidationServiceProvider" not found in D:\Application\www\CPDB\vendor\yajra\laravel-oci8\src\Oci8\Oci8ValidationServiceProvider.php:8 Stack trace: #0 {main} thrown in D:\Application\www\CPDB\vendor\yajra\laravel-oci8\src\Oci8\Oci8ValidationServiceProvider.php on line 8