Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Validation\Rule" not found in T:\Xampp\htdocs\notice\vendor\laravel\framework\src\Illuminate\Validation\ClosureValidationRule.php:9 Stack trace: #0 {main} thrown in T:\Xampp\htdocs\notice\vendor\laravel\framework\src\Illuminate\Validation\ClosureValidationRule.php on line 9