Fatal error: Uncaught Error: Class "Ratchet\AbstractMessageComponentTestCase" not found in /var/www/html/mun/vendor/cboden/ratchet/tests/unit/Http/OriginCheckTest.php:8
Stack trace:
#0 {main}
thrown in /var/www/html/mun/vendor/cboden/ratchet/tests/unit/Http/OriginCheckTest.php on line 8