问题
I don't know why, but the option Push Notifications of Capabilities in Xcode is not displayed. Why?
I follow the developer guides, creating cers, enabling push in provisiong profiles, etc.
I had refreshed the account in Xcode preferences. What I am doing wrong?

回答1:
You need a apple account not free,Please see the picture:

回答2:
Try checking all the following.
- Make sure Push notifications is turned on under developer.apple.com.
- If yes, then make sure you are running the same provisioning profile and certificate.
- Also in Xcode, under Project -> General -> Select the qualifying team.
This should work.
回答3:
I was using the free developer's account and decided to upgrade to a paid 99 USD account. Because I was using free, the advanced capabilities did not display until I removed my account by clicking on the '-' and clicked on the '+' to re-add my account. Then all the capabilities appeared.
回答4:
I had this problem because my Apple Developer membership was expired. Renew it and you are good to go.
回答5:
This setting does not exist anymore. Just make sure that your App ID includes Push Notifications in the dev center.
Then, register for push notifications with
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:
(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
and you should be good to go.
回答6:
Has Push Notifications of Capabilities in Xcode7
来源:https://stackoverflow.com/questions/30979218/no-push-notification-capability-in-xcode