Cant packing project

Development Programming & Scripting
1

im using download function by RVillani from this answer https://answers.unrealengine.com/questions/352833/download-a-file-to-hard-drive-blueprints-or-c.html. Its working but i cant packing my project, there is log:

2

ok im resolved, i unclude this .h :

#include "Paths.h"
#include "Platform.h"
#include "PlatformFile.h"
#include "PlatformFilemanager.h"