Fatal error: Uncaught Error: Class "React\Tests\Promise\Timer\TestCase" not found in C:\laragon\www\dinesync\vendor\react\promise-timer\tests\FunctionSleepTest.php:8 Stack trace: #0 {main} thrown in C:\laragon\www\dinesync\vendor\react\promise-timer\tests\FunctionSleepTest.php on line 8