AddInstanceForFactory：没有为 id swiftui 注册工厂

Question

如何解决 \xe2\x80\x9cAddInstanceForFactory: 没有为 id <CFUUID 0x600001bef9c0>\xe2\x80\x9d 注册工厂错误？

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struct PlayerContentView: View {\nvar data:datamodel\n@State var player = AVQueuePlayer(playerItem: AVPlayerItem(url: Bundle.main.url(forResource: "1", withExtension: "mp4")!))\n@State var playerlooper = AVPlayerLooper(player: AVQueuePlayer(playerItem: AVPlayerItem(url: Bundle.main.url(forResource: "1", withExtension: "mp4")!)), templateItem: AVPlayerItem(url: Bundle.main.url(forResource: "1", withExtension: "mp4")!))\n\nvar body: some View {\n        VStack{\n            HStack{\n                backButton\n                Spacer()\n            }.padding()\n            .padding(.top)\n            PlayerView2(player: $player).cornerRadius(15)\n                .frame(width: UIScreen.main.bounds.width - 10, height: UIScreen.main.bounds.height / 1.9, alignment: .center)\n\n        }\n        .onAppear {\n            \n            player = AVQueuePlayer(playerItem: AVPlayerItem(url: Bundle.main.url(forResource: data.exercise[excount].video, withExtension: "mp4")!))\n            playerlooper = AVPlayerLooper(player: player, templateItem: AVPlayerItem(url: Bundle.main.url(forResource: data.exercise[excount].video, withExtension: "mp4")!))\n                player.pause()\n            }\n        \n

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Answer 1

这只是一条信息性消息，而不是错误。几个版本前，AVFoundation 开始显示\xe2\x80\x9cAddInstanceForFactory: Nofactory Registered for id \xe2\x80\x9d。仅当使用 AVFoundation 的应用程序在模拟器上运行时才会出现此消息，大概是因为模拟器不是在工厂制造的。该消息不会出现在实际设备上。

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根据我的经验，该消息并不表示有任何问题。如果您的应用程序出现问题，请查找该问题的其他迹象。

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