Fatal error: Call to undefined method GuzzleHttp\Client::request() with Guzzle 6
<p>I'm using Guzzle 6 with Laravel 5.2. </p>

<p>I'm trying to access a simple internal API:</p>

<pre><code>use GuzzleHttp\Client;

        $client = new Client(['base_uri' =&gt; getenv('URL_BASE').'api/v1/']);
        $response = $client-&gt;request('GET', 'tournaments');
</code></pre>

<p>And I get this message:</p>

<pre><code>Fatal error: Call to undefined method GuzzleHttp\Client::request()
</code></pre>

<p>When I see the <a href="https://github.com/guzzle/guzzle/blob/master/docs/quickstart.rst">docs</a>, it says: </p>

<pre><code>$client = new GuzzleHttp\Client(['base_uri' =&gt; 'https://foo.com/api/']);
</code></pre>

<p>But PHPStorm cannot resolve GuzzleHttp</p>

<p>What should I do to make it work???</p>