Guideline 5.1.5 - Legal - Privacy - Location Services
Your app uses location services but does not clarify the purpose of its use in the location modal alert as required in the iOS Human Interface Guidelines.Please see attached screenshots for details.Next StepsTo resolve this issue, please specify the intended purpose of using the user's location in the location permission modal alert.ResourcesFor additional information and instructions on configuring and presenting an alert, please review the Requesting Permission section of the iOS Human Interface Guidelines and the Information Property List Key Reference. You may also want to review the Technical Q&A QA1937: Resolving the Privacy-Sensitive Data App Rejection page for details on how to provide a usage description for permission request alerts.
具体就是说对于后台定位功能，我们进行的描述不够确切（虽然上一个版本没有提出这个问题）。具体的解决方案是在info.plist中增加一行NSLocationAlwaysUsageDescription，具体进行描述你要使用后台定位功能做什么或者别的描述，尽量做到简洁明了。如图所示：
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