I tried to include in-app billing in my app and for the purpose of testing, based the whole procedure on the \"TrivialDrive\" example for version 3 of in-app billing (and im
I have just finished wrapping my head around the exact same problem. IabHelper-Setup starts, but after that, nothing else happens. And clicking on an in-App-Purchase returns the exact same error you had.
Here's what I figured out: I only used emulators from eclipse. Once I read that a certain Google Play version is required, I noticed that Google Play was missing entirely on my test emulation drives.
When I then used a real phone it worked flawlessly! So if you happen to be still stuck on that problem, try to use a real device (if you have one available). That should do the trick.