Google In app Invalid or uninitialized OnlineSubsystem

Hello.

I got below an error message.

LogScriptCore:Warning: Script Msg: UInAppPurchaseQueryCallbackProxy::TriggerQuery - Invalid or uninitialized OnlineSubsystem

Anybody knows what’s wrong?
When I make project there was no Android folder and AndroidEngine.ini file. So I made it by myself. and put

[OnlineSubsystem]
DefaultPlatformService=GooglePlay
135294-
[OnlineSubsystemGooglePlay.Store]
bSupportsInAppPurchasing=True