error: 'kInAppPurchaseProUpgradeProductId' undeclared (first use in this function)

I am new to inapp purchase and I am trying to implement in app purchase in my app I have created a provision profile also I had added the app to itunes but know when I 开发者_开发百科am trying to deploy on my device it shows following error.

error: 'kInAppPurchaseManagerProductsFetchedNotification' undeclared (first use in this function)

error: 'kInAppPurchaseManagerProductsFetchedNotification' undeclared (first use in this function)

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When you copy and paste code without understanding it you have to copy everything.

you forgot this line:

#define kInAppPurchaseManagerProductsFetchedNotification @"kInAppPurchaseManagerProductsFetchedNotification"