Class PermissionTableSeeder does not exist

i have an error. when i run php artisan db:seed --class=PermissionTableSeeder

appeared this error

C:xampphtdocsvendorlaravelframeworksrcIlluminateContainerContainer.php:809
ReflectionException::(“Class PermissionTableSeeder does not exist”)

<?php

namespace DatabaseSeeders;

use IlluminateDatabaseSeeder;
use SpatiePermissionModelsPermission;
// 

// 

class PermissionTableSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        $permissions = [
            'role-list',
            'role-create',
            'role-edit',
            'role-delete',
        ];

        foreach ($permissions as $permission) {
            Permission::create(['name' => $permission]);
        }
    }
}