关于Apple Push Notification Service的配置流程，以前在cocoachina上发过一篇详细的帖子：http://www.cocoachina.com/bbs/read.php?tid-20723.html
今天再次在真机上测试，在获取device_token的时候碰到了这样的一个问题：
Error in registration. Error: Error Domain=NSCocoaErrorDomain Code=3000 UserInfo=0x1179f0 “未找到应用程序的“aps-environment”的权利字符串”
刚开始以为是Provisioning Profiles出了问题，但是经过再三核查，确认的Push Notification状态已经是Enabled for Development.
查看官方API文档,有这样一段描述：
5.Verify that the entitlements in the provisioning-profile file are correct. To do this, open the .mobileprovision file in a text editor. The contents of the file are structured in XML. In the Entitlements dictionary locate the aps-environment key. For a development provisioning profile, the string value of this key should be development; for a distribution provisioning profile, the string value should be production.
查看mobileprovision文件，果然是缺少aps-environment这样的key-value.
<dict>
<key>application-identifier</key>
<string>R7W26X46PB.com.5yi.PushServer</string>
<key>aps-environment</key>
<string>development</string>
<key>get-task-allow</key>
<true/>
<key>keychain-access-groups</key>
<array>
<string>R7W26X46PB.*</string>
</array>
</dict>
估计是下载mobileprovision文件的时候, APNS还没有激活. 重新在生成一次mobileprovision文件,再编译应该就可以了.