Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\Tests\Session\Storage\Handler\AbstractRedisSessionHandlerTestCase" not found in C:\Apache24_x64\htdocs\ipad\vendor\symfony\http-foundation\Tests\Session\Storage\Handler\PredisSessionHandlerTest.php:16 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\ipad\vendor\symfony\http-foundation\Tests\Session\Storage\Handler\PredisSessionHandlerTest.php on line 16