Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\Apache24_x64\htdocs\vak_old\vendor\symfony\debug\Tests\ExceptionHandlerTest.php:22 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\vak_old\vendor\symfony\debug\Tests\ExceptionHandlerTest.php on line 22