Laravel 7 - artisan seed Target class [DatabaseSeeder] does not exist - php

Question

I'm trying to seed my "DatabaseSeeder.php' But when I try to run
php artisan db:seed
I get the error:
Target class [DatabaseSeeder] does not exist.
My code in "DatabaseSeeder.php" looks like this:
<?php
use Illuminate\Database\Seeder;
use Illuminate\Support\Facades\DB;
class DatabaseSeeder extends Seeder
{
/**
* Seed the application's database.
*
* #return void
*/
public function run()
{
factory(App\User::class, 3)->create()->each(function($u) {
$u->questions()
->saveMany(
factory(App\Question::class, rand(1, 5))->make()
);
});
}
}
What I tried so far:
composer dump-autoload
php artisan cache:clear
php artisan optimize
Note: I don't have a User-Made seeder, I'm trying to use the default one (DatabaseSeeder.php), but for some reason, it's telling me that it doesn't exist.

Answer 1

With Laravel 7, the composer.json needs the classmap reference in the autoload mapping, because the default seed folder doesn't respect PSR-4: database/seeds (see Laravel Documentation - Database: Seeding)
Check to have this in the composer.json:
"classmap": [
"database/seeds",
"database/factories"
],
And run composer dump-autoload
See this similar error: Target class [DatabaseSeeder] does not exist - Laravel 7 and Composer 2