Fatal error: Uncaught Error: Class 'Ratchet\AbstractMessageComponentTestCase' not found in C:\xampp\htdocs\datosgr\cons\vendor\cboden\ratchet\tests\unit\Session\SessionComponentTest.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\datosgr\cons\vendor\cboden\ratchet\tests\unit\Session\SessionComponentTest.php on line 12