找不到类'App \ Http \ Controllers \ Saml2'

I'm on Laravel 5, I'm trying to integrate SAML 2.0 with it. I've found this package = https://github.com/aacotroneo/laravel-saml2

I tried follow their steps,

But at the end when I use

<?php

namespace App\Http\Controllers;

class SAMLController extends Controller {


    public function adminSignIn(){
        return Saml2::login(URL::full());
    }
}

I've already added

provider

'Aacotroneo\Saml2\Saml2ServiceProvider',

aliases

'Saml2'               => 'Aacotroneo\Saml2\Facades\Saml2Auth',

Why do I still getting ?

Class 'App\Http\Controllers\Saml2' not found

Note : I've even retry after sudo composer dumpauto, same result.

I'm opening to any suggestions at this moment.

Any hints / suggestions / helps on this be will be much appreciated !

You need to use full namespace for the facade:

\Saml2::login(URL::full());

Or add this to the top of the class:

use Saml2;

Because you modified config/app.php, you may also want to clear config cache:

php artisan config:cache

you need to explicitly write "use" on top

use Saml2;

This might work.