I\'m trying to use In-App billing:
mIabHelper = new IabHelper(this, BILLING_KEY);
mIabHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
This is because the account which is currently logged in the device is not registered in Google Developer Console. TO resolve this problem, 1. Go to your Google Developer Consol 2. In Account Detail Tab, enter the email address(which is in device) in "Gmail accounts with testing access" and press the save button on the top.
Thats it.