class not found

[Mahdi-Ba]

i created php file and write this code

<?php
require '../vendor/autoload.php';
require 'Client.php';
use Goutte\Client;
$client = new Client();
$crawler = $client->request('GET', 'https://www.symfony.com/blog/');
var_dump($crawler);
?>

when run code I get this error

   PHP Fatal error:  Class 'Symfony\Component\BrowserKit\Client' not found in /home/mbahari/Documents/crawler/Goutte/Goutte/Client.php on line 31

[stof]

have you run Composer to install the dependencies ?