Fatal error: Uncaught Error: Class 'React\Tests\Stream\TestCase' not found in C:\laragon\www\bc-game-updown\backend\vendor\react\stream\tests\UtilTest.php:13 Stack trace: #0 {main} thrown in C:\laragon\www\bc-game-updown\backend\vendor\react\stream\tests\UtilTest.php on line 13