I just received the following email from Google Play

> 
> 'Hello Google Play Developer,
> 
> 
> We detected that your app(s) listed at the end of this email are
>  invoking the in-app billing service without setting a target package
>  for the intent. This can enable a malicious package to bypass the Play
>  store billing system and access items that have not been purchased.
> 
> 
> Next Steps
> 
> 
> If you are using IabHelper, please start using the latest SDK. If you
>  are manually invoking the in-app billing service, make sure you are
>  calling Intent.setPackage(“com.android.vending”) on any intents to
>  "com.android.vending.billing.InAppBillingService.BIND". Sign in to
>  your Developer Console and submit the updated version of your app.
>  Check back after five hours - we’ll show a warning message if the app
>  hasn’t been updated correctly.'
> 
> 
> 

I am not sure what is the fix for this problem. Can anyone tell where to specify the code? Is it somewhere in Java Class or the Manifest?