Adding C++ code to Android project breaks Google Play integration
Steps to reproduce using plain 4.7.6 on Windows:
This issue is being answered by staff on the Android forums, please have a look at this thread for a more in-depth discussion of this particular issue.
Thanks very much!
answered Apr 27 '15 at 04:40 PM
Had the exact same problem. I'll make a tl;dr and actually slightly modified version of the thread that wittlief linked you to:
Open your [project].Build.cs file and simply add "OnlineSubsystemGooglePlay" in the PublicDependencyModuleNames list.
Google Play services now work in development (only the login for dev, of course) and distribution!
I made this post in the thread as well, for anyone arriving there.
Could we possibly get a bug report sent in for this? It's an incredibly easy fix, but not at all obvious.
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