Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\messenger\Test\Middleware\MiddlewareTestCase.php:23 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\messenger\Test\Middleware\MiddlewareTestCase.php on line 23