Unreal Engine 4 is available for Win10 UWP app dev now

[anonymous_user_582995091 (anonymous_user_58299509)]

Hey guys I’m currently receiving the following errors when attempting to build my project as either a Development or Shipping build with the latest UWP github code:

3>LINK : warning LNK4199: /DELAYLOAD:libogg_64.dll ignored; no imports found from libogg_64.dll
3>LINK : warning LNK4199: /DELAYLOAD:libvorbis_64.dll ignored; no imports found from libvorbis_64.dll
3>Module.Icmp.cpp.obj : error LNK2019: unresolved external symbol "unsigned short __cdecl NtoHS(unsigned short)" (?NtoHS@@YAGG@Z) referenced in function "struct FIcmpEchoResult __cdecl UDPEchoImpl(class ISocketSubsystem *,class FString const &,float)" (?UDPEchoImpl@@YA?AUFIcmpEchoResult@@PEAVISocketSubsystem@@AEBVFString@@M@Z)
3>Module.Icmp.cpp.obj : error LNK2019: unresolved external symbol "unsigned short __cdecl HtoNS(unsigned short)" (?HtoNS@@YAGG@Z) referenced in function "struct FIcmpEchoResult __cdecl UDPEchoImpl(class ISocketSubsystem *,class FString const &,float)" (?UDPEchoImpl@@YA?AUFIcmpEchoResult@@PEAVISocketSubsystem@@AEBVFString@@M@Z)
3>Module.Icmp.cpp.obj : error LNK2019: unresolved external symbol "unsigned int __cdecl HtoNL(unsigned int)" (?HtoNL@@YAII@Z) referenced in function "struct FIcmpEchoResult __cdecl UDPEchoImpl(class ISocketSubsystem *,class FString const &,float)" (?UDPEchoImpl@@YA?AUFIcmpEchoResult@@PEAVISocketSubsystem@@AEBVFString@@M@Z)

Any ideas why this might be happening?

In case you haven’t already tracked this down: ICMP is not a module we’ve ever specifically ported to UWP as it’s not typically used by games that do multiplayer over Live. It appears to contain some platform-specific code. The missing definitions (along with a few others) are (for Windows) in a Windows/IcmpWindows.cpp file which would be omitted when compiling for UWP. You’ll need to provide an equivalent UWP/IcmpUWP.cpp file, which may well be able to just reuse all the Windows Desktop code (e.g. much of the D3D12 RHI works this way).

So I got most of the errors fixed. I had to make sure I was submitting a packaged shipping build, as well as checking “Use Retail Windows Store Environment” in the UWP Packaging settings.

However I still get the following error:
Error Found: The app resources validation test detected the following errors:

• Image reference “Resources\Logo.png”: The image “Resources\Logo.png” failed the size restrictions of 50 X 50.

If I change the Logo.png to 50x50 from 150x150 I get the following error:
Error Found: The app resources validation test detected the following errors:

• Image reference “Resources\Logo.png”: The image “Resources\Logo.png” failed the size restrictions of 150 X 150.

@anonymous_user_582995091 any ideas?

Sounds like you might have fixed this already? If not, you want to make sure that in the UWP Project Settings page the Square 150x150 and Store Logo images (under Packaging/Images) are pointed at different files, since these have different sizing requirements. I think the default project setup may have a bug where both are set to the same (dummy) image - though for a store submission you should be providing your own images in place of the defaults in any case.