Class "PayPal" not found - Laravel 5

I am trying to integrate Paypal in my web application using this package:

http://packalyst.com/packages/package/netshell/paypal

I installed it according to the instructions.

Controller:

<?php namespace App\Http\Controllers;

use App\Http\Requests;
use App\Http\Controllers\Controller;
use PayPal;
use Redirect;

use Illuminate\Http\Request;

class PayPalController extends Controller {

    private $_apiContext;
    public function __construct() {
        $this->_apiContext = PayPal::ApiContext(
            config('services.paypal.client_id'),
            config('services.paypal.secret'));

        $this->_apiContext->setConfig(array(
            'mode' => 'sandbox',
            'service.EndPoint' => 'https://api.sandbox.paypal.com',
            'http.ConnectionTimeOut' => 30,
            'log.LogEnabled' => true,
            'log.FileName' => storage_path('logs/paypal.log'),
            'log.LogLevel' => 'FINE'
        ));
    }

    public function getCheckout() {
        $payer = PayPal::Payer();
        $payer->setPaymentMethod('paypal');

        $amount = PayPal:: Amount();
        $amount->setCurrency('EUR');
        $amount->setTotal(42); // This is the simple way,
        // you can alternatively describe everything in the order separately;
        // Reference the PayPal PHP REST SDK for details.

        $transaction = PayPal::Transaction();
        $transaction->setAmount($amount);
        $transaction->setDescription('What are you selling?');

        $redirectUrls = PayPal:: RedirectUrls();
        $redirectUrls->setReturnUrl(action('PayPalController@getDone'));
        $redirectUrls->setCancelUrl(action('PayPalController@getCancel'));

        $payment = PayPal::Payment();
        $payment->setIntent('sale');
        $payment->setPayer($payer);
        $payment->setRedirectUrls($redirectUrls);
        $payment->setTransactions(array($transaction));

        $response = $payment->create($this->_apiContext);
        $redirectUrl = $response->links[1]->href;

        return Redirect::to( $redirectUrl );
    }

    public function getDone(Request $request) {
        $id = $request->get('paymentId');
        $token = $request->get('token');
        $payer_id = $request->get('PayerID');

        $payment = PayPal::getById($id, $this->_apiContext);

        $paymentExecution = PayPal::PaymentExecution();

        $paymentExecution->setPayerId($payer_id);
        $executePayment = $payment->execute($paymentExecution, $this->_apiContext);

        // Clear the shopping cart, write to database, send notifications, etc.

        // Thank the user for the purchase
        return view('checkout.done');
    }

    public function getCancel() {
        // Curse and humiliate the user for cancelling this most sacred payment (yours)
        return view('checkout.cancel');
    }

}

      

        
        
        
      

    

Then I created a route:

Route::get('/paypal/checkout', [
    'as' => 'get-paypal-checkout', 'uses' => 'PayPalController@getCheckout'
]);

      

        
        
        
      

    

But, when I go this route, I get:

FatalErrorException on line PayPalController.php 14: Class "PayPal" not found on line PayPalController.php 14

From what I can see I have implemented my namespace correctly and use

. New to it all.

Any help would be greatly appreciated. Thank!

EDIT:

I changed the top of PayPalController.php to:

<?php namespace App\Http\Controllers;

use App\Http\Requests;
use App\Http\Controllers\Controller;
use Netshell\PayPal;
use Redirect;
use Illuminate\Http\Request;

      

        
        
        
      

    

But it still doesn't work. Class 'Netshell\PayPal' not found