I'm working with Laravel 8 to develop my project. And I made a controller called `BackendController` and add this `index()` method to call a blade:

```
public function index()
{
    return view('website.backend.dashboard.index');
}

```

And on `web.php` I add this route:

```
Route::get('/dashboard', 'BackendController@index');

```

But when I goto `/dashboard`, it says:

**lluminate\Contracts\Container\BindingResolutionException
Target class [BackendController] does not exist.**

I don't know why it prints this, because the Controller already exists! So if you know how to solve it, please help me...

Thanks in advance.