Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\print-bk\vendor\symfony\event-dispatcher\Tests\Debug\WrappedListenerTest.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\print-bk\vendor\symfony\event-dispatcher\Tests\Debug\WrappedListenerTest.php on line 19