k
looked into our project we include
#include “JsonObject.h”
The error message is about only including the headers you need not everything.
A good resource for finding the right headers to include is normally the unreal api documentation on the web.
Google class in question
“ue4 api FJsonObject”
which in this case leads you here
and on the bottom under references, you see what you need to include
Module + Header
For the header you need to figure out what part of the path you can leave out
Runtime/Json/Public/Dom/JsonObject.h
in this case apparently everything but the JsonObject.h
quite often it’s everything including “Public” or everything including Runtime/Engine/Classes/