Reprinted from: http://blog.csdn.net/u010731949/article/details/52555768
It is the picture above. Remember to check whether the 'Push Notification' switch is turned on or not. After turning it on, steps will automatically check the validity of push files such as APP ID. After my project turned on this switch, the verification also passed, and when I ran it again, the error of 'Code=3000 "The authorization string for the "aps-environment" of the application was not found"' would not appear at the beginning.