Fatal error: Uncaught Error: Class "Http\Client\Tests\HttpClientTest" not found in /users/danielstruebig/www/firma/vendor/guzzlehttp/guzzle/tests/HttplugIntegrationTest.php:12 Stack trace: #0 {main} thrown in /users/danielstruebig/www/firma/vendor/guzzlehttp/guzzle/tests/HttplugIntegrationTest.php on line 12