Android – This version of the application is not configured for billing through Google Play

Possible Duplicate:
This version of the application is not configured for billing through Google Play

I already have an application (with inapp purchase) in android market. My problem is inapp purchase functionality is not working properly and I re-write the code again. Now I want to run the application to test but i getting error message.
"This version of the application is not configured for billing through Google Play."

I have permission in manifest file too. And checked with signed apk.

Please help.

Thanks

Solution to answer:

you have to sign the apk and uninstall previous apk and re-install the sign apk in device..then this error will not occur....Try it..