title: GuzzleHttp give me an error suddenly on Laravel
body: <p>I suddenly had this error on my project:</p>
  <pre><code>Argument 1 passed to Vonage\Client::setHttpClient() must be an instance of Psr\Http\Client\ClientInterface, instance of GuzzleHttp\Client given, called in /home/vagrant/Code/xxx/vendor/nexmo/client-core/src/Client.php
  </code></pre>
  <p>Here is a little part of code in package:</p>
  <pre><code>        if (is_null($client)) {
          // Since the user did not pass a client, try and make a client
          // using the Guzzle 6 adapter or Guzzle 7 (depending on availability)
          /** @noinspection ClassConstantCanBeUsedInspection */
          if (class_exists('\GuzzleHttp\Client')) {
              $client = new \GuzzleHttp\Client();
          } elseif (class_exists('\Http\Adapter\Guzzle6\Client')) {
              /** @noinspection CallableParameterUseCaseInTypeContextInspection */
              /** @noinspection PhpUndefinedNamespaceInspection */
              /** @noinspection PhpUndefinedClassInspection */
              $client = new \Http\Adapter\Guzzle6\Client();
          }
      }
  
      $this-&gt;setHttpClient($client);
  </code></pre>
  <p>I tried to update guzzlehttp with:
  <strong>composer require guzzlehttp/guzzle</strong></p>
  <p>And I've got this error:</p>
  <pre><code>  Problem 1
      - webup/laravel-sendinblue v2.0.3 requires guzzlehttp/guzzle ^6.3 -&gt; satisfiable by guzzlehttp/guzzle[6.5.x-dev].
      - webup/laravel-sendinblue v2.0.3 requires guzzlehttp/guzzle ^6.3 -&gt; satisfiable by guzzlehttp/guzzle[6.5.x-dev].
      - webup/laravel-sendinblue v2.0.3 requires guzzlehttp/guzzle ^6.3 -&gt; satisfiable by guzzlehttp/guzzle[6.5.x-dev].
      - Can only install one of: guzzlehttp/guzzle[7.2.0, 6.5.x-dev].
      - Installation request for guzzlehttp/guzzle ^7.2 -&gt; satisfiable by guzzlehttp/guzzle[7.2.0].
      - Installation request for webup/laravel-sendinblue (locked at v2.0.3, required as 2.*) -&gt; satisfiable by webup/laravel-sendinblue[v2.0.3].
  </code></pre>
  <p>I don't know what I can doing :(</p>
  <p>Please help me to solve this problem, thanks!</p>