Fatal error: Uncaught Error: Class "Illuminate\Database\Eloquent\Factories\Factory" not found in /var/www/ZProyectosTerminados/Laravel/Biblioteca/database/factories/BookFactory.php:10 Stack trace: #0 {main} thrown in /var/www/ZProyectosTerminados/Laravel/Biblioteca/database/factories/BookFactory.php on line 10