Fatal error: Uncaught Error: Class 'React\Promise\TestCase' not found in C:\laragon\www\bc-game-updown\backend\vendor\react\promise\tests\FunctionRaceTest.php:7 Stack trace: #0 {main} thrown in C:\laragon\www\bc-game-updown\backend\vendor\react\promise\tests\FunctionRaceTest.php on line 7