Hello, I have created a class in my c++ project UE4.15. VS2015 return Error C2039 ‘_InterlockedExchange’: is not a member of ‘FWindowsPlatformAtomics’ in IPAddress.h line: FPlatformAtomics::InterlockedExchange(&Parent->bShouldAbandon,true); when I’'m compiling the project. Someone can help me…

Add this #include "AllowWindowsPlatformTypes.h" #include "windows.h" // any native windows header #include "HideWindowsPlatformTypes.h" around any native Windows header in your sources.