Fatal error: Uncaught Error: Class "Ratchet\AbstractConnectionDecorator" not found in /lamp/www/quantix/vendor/cboden/ratchet/tests/helpers/Ratchet/Mock/ConnectionDecorator.php:5 Stack trace: #0 {main} thrown in /lamp/www/quantix/vendor/cboden/ratchet/tests/helpers/Ratchet/Mock/ConnectionDecorator.php on line 5