Getting In Container.php line 752: Class RoleTableSeeder does not exist error, when trying to seed a role in Laravel

Question

Currently, I am trying to create roles for my application, unfortunately I am having some troubles. Whenever I run php artisan migrate --seed, I get the error I've written in the title. Honestly, I feel like I've messed up something really simple like a name but I just can't find my mistake. I'd appreciate any help.

User.php model:

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;


class User extends Model implements Authenticatable
{
    public function roles(){
        return $this->belongsToMany('App\Role');
    }
}

Role.php model:

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Role extends Model
{
    public function users(){
        return $this->belongsToMany('App\User');
    }
}

Users table:

public function up()
    {
        Schema::create('users', function (Blueprint $table) {
            $table->increments('id');
            $table->string('first_name');
            $table->string('last_name');
            $table->string('username');
            $table->string('password');
            $table->string('email');
            $table->timestamps();
            $table->rememberToken();
        });
    }

Roles table:

public function up()
    {
        Schema::create('roles', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->string('description')->nullable()->default(null);
            $table->timestamps();
        });
    }

role_user table

public function up()
{
    Schema::create('role_user', function (Blueprint $table) {
        $table->increments('id');
        $table->integer('user_id');
        $table->integer('role_id');
        $table->timestamps();
    });
}

RoleTableSeeder.php

    <?php

use Illuminate\Database\Seeder;
use App\Role;

class RoleTableSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        $role_user = new Role();
        $role_user->name = 'User';
        $role_user->description = "Normal User";
        $role_user->save();

        $role_admin = new Role();
        $role_admin->name = 'Admin';
        $role_admin->description = "Admin User";
        $role_admin->save();
    }
}

UserTableSeeder.php

public function run()
    {
        $role_admin = Role::where('name', 'Admin')->first();

        $user = new User();
        $user->first_name = 'test';
        $user->last_name = 'test';
        $user->username = 'Admin';
        $user->password = bcrypt('test');
        $user->email = '[email protected]';
        $user->save();
        $user->roles()->attach($role_admin);
    }

DatabaseSeeder.php

public function run()
    {
        $this->call(RoleTableSeeder::class);
        $this->call(UserTableSeeder::class);
    }
}

Answer 1

As mentioned in the comments:

Run: composer dump-autoload.

If Composer\Exception\NoSslException exception is thrown, you may need to run composer config -g -- disable-tls true before composer dump-autoload.