Fatal error: Uncaught Error: Class "EasyRdf\Format" not found in /var/www/html/vendor/sweetrdf/easyrdf/tests/EasyRdf/Parser/TurtleTest.php:49 Stack trace: #0 {main} thrown in /var/www/html/vendor/sweetrdf/easyrdf/tests/EasyRdf/Parser/TurtleTest.php on line 49