Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in /home/host.heliohost.us/httpdocs/tsbisha/database/seeders/CourseSeeder.php:8 Stack trace: #0 {main} thrown in /home/host.heliohost.us/httpdocs/tsbisha/database/seeders/CourseSeeder.php on line 8