Fatal error: Uncaught Error: Class "Symfony\Component\Cache\Adapter\AbstractTagAwareAdapter" not found in I:\www\pvcHttp\vendor\symfony\cache\Adapter\FilesystemTagAwareAdapter.php:25 Stack trace: #0 {main} thrown in I:\www\pvcHttp\vendor\symfony\cache\Adapter\FilesystemTagAwareAdapter.php on line 25