Fatal error: Uncaught Error: Class "Ratchet\AbstractMessageComponentTestCase" not found in /home/rwebserver/public_html/davaomanpower/vendor/cboden/ratchet/tests/unit/Http/HttpServerTest.php:8 Stack trace: #0 {main} thrown in /home/rwebserver/public_html/davaomanpower/vendor/cboden/ratchet/tests/unit/Http/HttpServerTest.php on line 8