class Html not found error in laravel 5

I add these packages in my laravel composer.json "laravelcollective/html": "~5.0" and i add these 'Collective\Html\HtmlServiceProvider', in providers and these 'Form'=> 'Collective\Html\FormFacade','Html=>'Collective\Html\HtmlFacade', in aliases..

But i cant make change like this in my HTML file {{ html::style('/css/AdminLTE.min.css') }} its showHTML Class Not Found.

i checked in tinker

>>> Form::text('foo') => "<input name=\"foo\" type=\"text\">" but its working..any help??

via Chebli Mohamed