Fatal error: Uncaught Error: Interface "Hamcrest\SelfDescribing" not found in /srv/www/sites/public/laura/vendor/hamcrest/hamcrest-php/tests/Hamcrest/StringDescriptionTest.php:6 Stack trace: #0 {main} thrown in /srv/www/sites/public/laura/vendor/hamcrest/hamcrest-php/tests/Hamcrest/StringDescriptionTest.php on line 6