Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\xampp\htdocs\satisfaction-survey-main\database\seeders\SurveyTestDataSeeder.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\satisfaction-survey-main\database\seeders\SurveyTestDataSeeder.php on line 10