I am getting error in APNS implementation

I am getting error in APNS implementation I used code from here http://www.easyapns.com/apple-delegate

I get following error

Domain=NSCocoaErrorDomain Code=3000 UserInfo=0x12f9f0 "no valid 'aps-environment' entitlement string found for application"

Any ide开发者_JAVA技巧a?

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For developing apps with push notification you need to create appCertificate for push notification and sign the app with that.