Class 'Collective\Html\Facades\FormFacade' not found (View:)

i try implement Laravel Collective in Laravel 5.4. I updated Laravel Collective by

composer require laravelcollective/html

and configured config/app.php like this:

'providers' => [
    Collective\Html\HtmlServiceProvider::class,

and

'aliases' => [
    'Form' => Collective\Html\FormFacade::class,
    'Html' => Collective\Html\HtmlFacade::class

and when i try to make form like this:

{!! Form::open(['url'=>'videos', 'class'=>'form-horizontal']) !!}
    code..
{!! Form::close() !!}

in web browser Laravel give me error:

Class 'Collective\Html\Facades\FormFacade' not found (View: C:\kurs_laravel\resources\views\videos\create.blade.php)

and

Class 'Collective\Html\Facades\FormFacade' not found

via Sz. Tomczyk