Event calendar in laravel

I've tried this link https://github.com/maddhatter/laravel-fullcalendar.

Below codes are taken from the above link:

1) In composer.json

"require": {"maddhatter/laravel-fullcalendar": "~1.0" }

2) In app.php

'providers' => [MaddHatter\LaravelFullcalendar\ServiceProvider::class,]
'aliases' => ['Calendar' => MaddHatter\LaravelFullcalendar\Facades\Calendar::class,]

3) In controller

use MaddHatter\LaravelFullcalendar\Facades\Calendar;

class CalendarEvent extends \Illuminate\Database\Eloquent\Model implements \MaddHatter\LaravelFullcalendar\Event
{ 

   public function ViewSchdule($id,$program) 
   {

    $events = [];

    $events[] = \Calendar::event(
        'Event One', //event title
        false, //full day event?
        '2015-02-11T0800', //start time (you can also use Carbon instead of DateTime)
        '2015-02-12T0800', //end time (you can also use Carbon instead of DateTime)
        0, //optionally, you can specify an event ID
        [
            'url' => 'http://full-calendar.io'
        ]
    );

    $events[] = \Calendar::event(
        "Valentine's Day", //event title
        true, //full day event?
        new \DateTime('2015-02-14'), //start time (you can also use Carbon instead of DateTime)
        new \DateTime('2015-02-14'), //end time (you can also use Carbon instead of DateTime)
        'stringEventId', //optionally, you can specify an event ID
        [
            'url' => 'http://full-calendar.io'
        ]
    );

    $eloquentEvent = EventModel::first(); //EventModel implements MaddHatter\LaravelFullcalendar\Event

    $calendar = \Calendar::addEvents($events) //add an array with addEvents
        ->addEvent($eloquentEvent, [ //set custom color fo this event
            'color' => '#800',
        ])->setOptions([ //set fullcalendar options
            'firstDay' => 1
        ])->setCallbacks([ //set fullcalendar callback options (will not be JSON encoded)
            'viewRender' => 'function() {alert("Callbacks!");}'
        ]); 

    return view('view-schedule', compact('calendar'));
}

}

4) In view

<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.9.0/moment.min.js"></script>

<script src="//cdnjs.cloudflare.com/ajax/libs/fullcalendar/2.2.7/fullcalendar.min.js"></script>

<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/fullcalendar/2.2.7/fullcalendar.min.css"/>

{!! $calendar->calendar() !!}
{!! $calendar->script() !!}

I've added the above codes, but i got the error below

FatalErrorException in ProviderRepository.php line 146: Class 'MaddHatter\LaravelFullcalendar\ServiceProvider' not found

Fatal error

Please give your idea for this laravel beginner.

via Geetha Lakshmi