laravel 5.2 cant creating bootstrap form

i would like to ask you about register page im trying to do . im just new to laravel . thanks in advance ...

in my composer.json there is this part:

"

    require": {
        "laravelcollective/html": "5.2.*"
    },

and in app.php :

providers :
 Collective\Html\HtmlServiceProvider::class,
aliases:
'Form' => Collective\Html\FormFacade::class,
'Html' => Collective

\Html\HtmlFacade::class,

i want it to display enter image description here

but it displays: enter image description here

my register page code :

@extends(

'layouts.masters.main')

@section('page-content')


<div class="container">

    @include('layouts.partials.nav')

    <form class="form-signin">
        <h2 class="form-signin-heading">Please sign in</h2>
        <label for="inputEmail" class="sr-only">Email address</label>
        <input type="email" id="inputEmail" class="form-control" placeholder="Email address" required autofocus>
        <label for="inputPassword" class="sr-only">Password</label>
        <input type="password" id="inputPassword" class="form-control" placeholder="Password" required>
        <div class="checkbox">
            <label>
                <input type="checkbox" value="remember-me"> Remember me
            </label>
        </div>
        <button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button>
    </form>

</div>
@stop

via Chebli Mohamed