Fatal error: Uncaught Error: Class 'Symfony\Component\Debug\BufferingLogger' not found in C:\Apache24\htdocs\vendor.old\symfony\debug\Tests\Fixtures\LoggerThatSetAnErrorHandler.php:7 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\vendor.old\symfony\debug\Tests\Fixtures\LoggerThatSetAnErrorHandler.php on line 7