Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in E:\install\laragon\www\erp_gpharma_web\vendor\cboden\ratchet\tests\unit\Server\IoConnectionTest.php:8 Stack trace: #0 {main} thrown in E:\install\laragon\www\erp_gpharma_web\vendor\cboden\ratchet\tests\unit\Server\IoConnectionTest.php on line 8