Call to undefined method AppModelsUser::attachRole() error

Call to undefined method AppModelsUser::attachRole()
I’m absolute beginner with laravel
I’m using “laratrust” package when I’m trying to register it gives me this error and I don’t know why

`<?php

namespace AppHttpControllersAuth;

use AppHttpControllersController;
use AppProvidersRouteServiceProvider;
use AppModelsUser;
use IlluminateFoundationAuthRegistersUsers;
use IlluminateSupportFacadesHash;
use IlluminateSupportFacadesValidator;
use LaratrustTraitsHasRolesAndPermissions;

class RegisterController extends Controller
{
    use RegistersUsers;
    use HasRolesAndPermissions;

    protected $redirectTo = RouteServiceProvider::HOME;

    public function __construct()
    {
        $this->middleware('guest');
    }

    protected function validator(array $data)
    {
        return Validator::make($data, [
            'name' => ['required', 'string', 'max:255'],
            'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
            'password' => ['required', 'string', 'min:8', 'confirmed'],
        ]);
    }
    protected function create(array $data)
    {
        $user = User::create([
            'name' => $data['name'],
            'email' => $data['email'],
            'password' => Hash::make($data['password']),
        ])/*->attachRole('user')*/;
        return  $user->attachRole('admin');
    }
}
`