我按照说明设置应用程序以使用just_audio_background包（https://pub.dev/packages/just_audio_background）中的背景音频。
不幸的是，在下一次提交到商店的应用程序中，苹果拒绝了它，并声明：

正文：

Guideline 2.5.4 - Performance - Software Requirements

Your app declares support for audio in the UIBackgroundModes key in your Info.plist, but we were unable to play any audible content when the app was running in the background.

Next Steps

The audio key is intended for use by apps that provide audible content to the user while in the background, such as music player or streaming audio apps. Please revise your app to provide audible content to the user while the app is in the background or remove the "audio" setting from the UIBackgroundModes key.

后台功能适用于TestFlight的舞台和生产应用程序，我可以将应用程序置于后台或锁定屏幕并继续收听音频，从通知中心播放/暂停，但仍然不被苹果接受。
软件包的README文件中缺少了什么，应该添加才能被苹果接受？
这是玩家在通知中心的截图：

我按照软件包自述文件中的说明设置了一切，他们按预期在TestFlight上工作，但如问题中所述被苹果拒绝。