CoreUObject.h - Monolithic headers

Hi there,
When I try to package my plugin I now get this warning when use #include "CoreUObject.h".

\Engine\Source\Runtime\CoreUObject\Public\CoreUObject.h(6): warning: Monolithic headers should not be used by this module. Please change it to explicitly include the headers it needs.

How can I solve this?

For future reference I have solved using #include "UObject/Class.h"