null productIdentifier AND invalidproductIdentifier (In-App Purchase)

Question

I have one product registered and cleared for sale in iTunes Connect. I request the CORRECT product id but the SKProductsResponse object returns null productIdentifier and null invalidproductIdentifier.

What could be the problem?

• TOTAL PRODUCTS REGISTERED: 1
• PRODUCT IDs MATCH: YES
• CLEARED FOR PURCHASE: YES
• SDK: iOS4.0
• DEVICE OS: iOS4.0 installed on iPhone 3G
• APPSTORE ACCOUNT: Logged Out Of Real Account (Test Account Created)
• BUILD SETTINGS: Building under development and testing on device (For all of you saying "test using distrib" How are you supposed to test distrib on device?)

Answer 1

Check below link it may help u ...

http://cocoabugs.blogspot.com/2010/08/in-app-purchase-product-id-is-invalid.html

Answer 2

check this post http://mobilbrain.blogspot.com/2010/10/checklist-inapp-purchase-en.html