Event listeners not firing in Laravel 5.1 - laravel

Question

I am having an issue getting my event listeners to fire in Laravel 5.1.
I am firing the following event:
/**
* Add new project.
*
* #param AddNewProjectRequest $request
* #return Redirect
*/
public function add(AddNewProjectRequest $request)
{
// Event(s);
Event::fire(new ProjectAdded($project, $request->only('file')));
}
I have the following event setup:
<?php
namespace App\Events\Project;
use App\Events\Event;
use Illuminate\Queue\SerializesModels;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
class ProjectAdded extends Event
{
use SerializesModels;
public $project;
/**
* Create a new event instance.
*
* #return void
*/
public function __construct($project)
{
$this->project = $project;
}
/**
* Get the channels the event should be broadcast on.
*
* #return array
*/
public function broadcastOn()
{
return [];
}
}
Here is my EventServiceProvider file:
<?php
namespace App\Providers;
use Illuminate\Contracts\Events\Dispatcher as DispatcherContract;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
class EventServiceProvider extends ServiceProvider
{
/**
* The event listener mappings for the application.
*
* #var array
*/
protected $listen = [
\App\Events\ProjectAdded::class => [
\App\Listeners\Project\ImportFileListener::class,
],
];
/**
* Register any other events for your application.
*
* #param \Illuminate\Contracts\Events\Dispatcher $events
* #return void
*/
public function boot(DispatcherContract $events)
{
parent::boot($events);
//
}
}
Here is my ImportFileListener listener:
<?php
namespace Woodford\Listeners\Project;
use Woodford\Events\ProjectAdded;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
class ImportFileListener
{
/**
* Create the event listener.
*
* #return void
*/
public function __construct()
{
}
/**
* Handle the event.
*
* #param ProjectAdded $event
* #return void
*/
public function handle(ProjectAdded $event)
{
dd('listener');
}
}
As you can see above I have added dd('listener'); to see if the listener gets fired - it doesn't!
I have also tried running php artisan optimize and composer dump-autoload but still no luck!
Does anyone know what could be wrong?