Why does registerForRemoteNotificationTypes sometimes fail?

Question

I'm writing an IOS app with Push Notifications.

I call registerForRemoteNotificationTypes .

When I run it on my iPhone 4S IOS 5.1, i get didRegisterForRemoteNotificationsWithDeviceToken .

However

When I run it on my iPad 1 IOS 5.1.1 or my iPad 2 IOS 6.1.3 I get didFailToRegisterForRemoteNotificationsWithError .

The message is "no valid 'aps-environment' entitlement string found for application".

What can I do to make it succeed on the iPads too?

Answer 1

创建一个新的Provisioning Profile并在Xcode中选择Provisioning Profile将清除错误！