how to fix undefined factory error in laravel

Question

I'm using laravel 7 and facing an error when I start-server also, I'm trying to composer update but still error facing

> PHP Notice:  Undefined variable: factory in
> D:\fivrr\INK_real_state\config\database\factories\UserFactory.php on
> line 19
> 

my userfactory.php file

<?php


/** @var \Illuminate\Database\Eloquent\Factory $factory */
use Faker\Generator as Faker;
use Illuminate\Support\Str;

/*
|--------------------------------------------------------------------------
| Model Factories
|--------------------------------------------------------------------------
|
| This directory should contain each of the model factory definitions for
| your application. Factories provide a convenient way to generate new
| model instances for testing / seeding your application's database.
|
*/

$factory->define(\App\User::class, function (Faker $faker) {
    return [
        'name' => $faker->name,
        'email' => $faker->unique()->safeEmail,
        'email_verified_at' => now(),
        'password' => '$2y$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2.uheWG/igi', // password
        'remember_token' => Str::random(10),
    ];
});