If you try to compile the latest-preview branch (currently changelist 2340836) it can fail due to missing headers for Steam
#include "steam/steam_api.h"
#include "steam/steamvr.h"
Problem is with Resource_2of3.zip the ThirdParty folder includes Steamworks/Steamv130 and this triggers the UE building tool to compile the Steam online subsystem.
So I propose to either delete the Steamv130 folder from the zip file or including the missing files.
Hi Dredok,
Thank you for pointing this out. I tried building the Engine using the same code and ran into the same problem that you described. The latest preview build is not a stable version of the Engine, and can potentially have problems like this one. It looks like removing the Steamworks folder will allow the Engine to build successfully. Our latest internal build of the Engine does not have this issue, and I expect that we will have a new build available for the latest preview soon. I will keep an eye on this to see if the same issue occurs in the next preview release.