Game Center/Google Play stopped connecting

Development Platform & Builds Mobile
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1

Not sure what changed to break it, but previously I was able to log into Game Center fine when launching an iOS game, and now I can’t. I’ve tried this with multiple projects, including Tappy Chicken, on both a PC and a Mac, in both 4.10 and 4.11. Game Center will never connect. The “Show external login UI” node always returns a failure.
I pulled the full version of my project from iTunes using TestFlight, and Game Center was also failing in that.
I tried downloading the full version of Tappy Chicken from the App Store, and Game Center worked in it.
It’s only failing in projects that I either launch or package from UE4 myself.

-Edit-
Android seems to be doing the same thing with Google Play, again not limited to a single project.
Also interesting is that banner ads are working fine.

2

I’ve made some progress on this issue. It seems the problem, at least for iOS, was me converting it into a C++ project. Apparently this will stop game center from working, unless certain code is added to the target.CS. It was recommended to get this code from the unreal match 3 project, so I just copied it over and changed the project references.
Now though, the project will not launch at all, and I don’t understand the issue referenced in the log.

-Log to follow-

3

LogPlayLevel: Automation.Process: Setting up command environment.

LogPlayLevel: Automation.Process: Compiling scripts.

LogPlayLevel: BuildCookRun.SetupParams: Setting up ProjectParams for /Users/grimw/Documents/Unreal Projects/DapperBat/DapperBat.uproject

LogPlayLevel: DynamicCompilation.CompileAssembly: Messages while compiling /var/folders/mm/6bmx378s5255q0dgf5txh0pw0000gn/T/UAT/+Users+Shared+UnrealEngine+4.11/Rules/UATRules935126411.dll:

LogPlayLevel: DynamicCompilation.CompileAssembly: WARNING: /Users/grimw/Documents/Unreal Projects/DapperBat/Source/DapperBat.Target.cs(26,26) : warning CS0672: Member DapperBatTarget.GetModulesToPrecompile(UnrealBuildTool.TargetInfo, System.Collections.Generic.List)' overrides obsolete member UnrealBuildTool.TargetRules.GetModulesToPrecompile(Unrea
lBuildTool.TargetInfo, System.Collections.Generic.List)’. Add the Obsolete attribute to `DapperBatTarget.GetModulesToPrecompile(UnrealBuildTool.TargetInfo, System.Collections.Generic.List)’

LogPlayLevel: DynamicCompilation.CompileAssembly: ERROR: (0,0) : error : /Users/Shared/UnrealEngine/4.11/Engine/Binaries/DotNET/UnrealBuildTool.exe (Location of the symbol related to previous warning)

LogPlayLevel: Program.Main: ERROR: AutomationTool terminated with exception: ERROR: UnrealBuildTool encountered an error while compiling source files

LogPlayLevel: Program.Main: AutomationTool exiting with ExitCode=1 (Error_Unknown)

LogPlayLevel: Domain_ProcessExit

LogPlayLevel: Completed Launch On Stage: Build Task, Time: 6.396360

LogPlayLevel: RunUAT ERROR: AutomationTool was unable to run successfully.

PackagingResults:Error: Error Launch failed! Unknown Error

I think this is saying the issue is on line 26 of the target.CS, which looks like this;

public override void GetModulesToPrecompile(TargetInfo Target, List ModuleNames)

4

I added this code to the build.CS, and game center will now run, but ads will not. Whether it’s the built-in banner ads or ones from the universal mobile ads plugin, the log says that the ads could not be found and nothing shows up in game;

    if ((Target.Platform == UnrealTargetPlatform.IOS))
    {
        PrivateDependencyModuleNames.Add("OnlineSubsystem");
        DynamicallyLoadedModuleNames.Add("OnlineSubsystemIOS");
        PrivateDependencyModuleNames.Add("Advertising");
        PrivateDependencyModuleNames.Add("IOSAdvertising");
    }

I’ve been able to confirm that the issue was with the project itself, and not with my ad network set up.
The only documentation I could find on this said that I need to add certain code to the target.CS, just as I posted earlier. Again though, this prevents it from launching.

Interestingly, it turns out that the Unreal Match 3 project will not launch either. It has the same issue created by adding the suggested code.