Call to undefined method Davibennun\LaravelPushNotification\App::getAdapter() about laravel-push-notification HOT 4 OPEN

    $devices = PushNotification::DeviceCollection($gcm_devicecollection);

    $message = PushNotification::Message(null,array(
        'collapse_key' => "New message available",
        'priority' => 'high'
    ));

    $collection = PushNotification::app('syncAndroid')
    ->to($devices)
    ->send($message);

    foreach ($collection->pushManager as $push) {
        $response = $push->getAdapter()->getResponse();

        Log::info('response '.var_export($response, true));
    }

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "laravel/framework": "4.2.*",
        "way/generators": "2.*",
        "cartalyst/sentry": "2.1.*",
        "madewithlove/laravel-oauth2": "0.4.*",
        "jenssegers/agent": "*",
        "j42/laravel-firebase": "dev-master",
        "fzaninotto/faker": "1.4.*@dev",
        "jenssegers/date": "~2.0",
        "intervention/image": "~2.1",
        "league/csv": "~7.0",
        "sly/notification-pusher": "~2.2",
        "davibennun/laravel-push-notification": "dev-master"
    },
    "autoload": {
        "classmap": [
            "app/commands",
            "app/controllers",
            "app/models",
            "app/database/migrations",
            "app/database/seeds",
            "app/tests/TestCase.php"
        ]
    },
    "scripts": {
        "post-install-cmd": [
            "php artisan clear-compiled",
            "php artisan optimize"
        ],
        "post-update-cmd": [
            "php artisan clear-compiled",
            "php artisan optimize"
        ],
        "post-create-project-cmd": [
            "php artisan key:generate"
        ]
    },
    "config": {
        "preferred-install": "dist"
    },
    "minimum-stability": "stable"
}