Fatal error: Uncaught Error: Class 'Hamcrest\FeatureMatcher' not found in /var/www/development/pixtask/vendor/hamcrest/hamcrest-php/tests/Hamcrest/FeatureMatcherTest.php:18 Stack trace: #0 {main} thrown in /var/www/development/pixtask/vendor/hamcrest/hamcrest-php/tests/Hamcrest/FeatureMatcherTest.php on line 18