Fatal error: Uncaught Error: Interface "Symfony\Component\HttpKernel\CacheClearer\CacheClearerInterface" not found in C:\Apache24\htdocs\kpiproject\vendor\symfony\http-kernel\CacheClearer\ChainCacheClearer.php:21 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\kpiproject\vendor\symfony\http-kernel\CacheClearer\ChainCacheClearer.php on line 21