ios - 'NSInvalidArgumentException'，原因 : '+[FIRInstanceIDCheckinPreferences preferencesFromKeychainContents:]: ' unrecognized selector sent to class '

Question

当我尝试使用 Firebase 中的 MLModelInterpreter 在我的 Xcode 项目中加载 tflite-File 时，在 Launchsreen 完全可见后出现以下错误:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[FIRInstanceIDCheckinPreferences preferencesFromKeychainContents:]: unrecognized selector sent to class 0x10235ca58

我的代码基于 Firebase 的教程，因此我很惊讶它不起作用。这是代码:

import Firebase


    var interpreter: ModelInterpreter?

    func convertTheModel(){


        guard let modelPath = Bundle.main.path( forResource: "model", ofType: "tflite", inDirectory: ""
            )
            else {
                print("not able to load model")
                return

        }

        let localModel = CustomLocalModel(modelPath: modelPath)
        interpreter =  ModelInterpreter.modelInterpreter(localModel: localModel)

        let ioOptions = ModelInputOutputOptions()
        do {
            try ioOptions.setInputFormat(index: 0, type: .float32, dimensions: [1, 22])
            try ioOptions.setOutputFormat(index: 0, type: .float32, dimensions: [1, 1])
        } catch let error as NSError {
            print("Failed to set input or output format with error: \(error.localizedDescription)")
        }



    let inputs = ModelInputs()
    var inputData = Data()

        do {
            for _ in 0 ..< 22 {

              // require fixed-point values or the original bytes.
              var RandomNumber = Float.random(in: 0 ..< 1)

              // Append normalized values to Data object.
              let elementSize = MemoryLayout.size(ofValue: RandomNumber)
              var bytes = [UInt8](repeating: 0, count: elementSize)
              memcpy(&bytes, &RandomNumber, elementSize)
              inputData.append(&bytes, count: elementSize)
          }
          try inputs.addInput(inputData)
        } catch let error {
          print("Failed to add input: \(error)")
        }


        interpreter!.run(inputs: inputs, options: ioOptions) { outputs, error in
            guard error == nil, let outputs = outputs else { return }

            print(outputs)
        }

    }

经过一番调试后，我隐约猜测错误是由这行代码引起的: interpreter = ModelInterpreter.modelInterpreter(localModel: localModel)
附加信息

在上述问题之前，我遇到了另一个问题:在构建项目时，编译器显示此错误:

/Users/Path/Application_Name/Update/Pods/GoogleMobileVision/Detector/Frameworks/GoogleMobileVision.framework/GoogleMobileVision(VisionExtension.pbobjc_0848a2b53cac8a49ea32ab4e6cb931d4.o)
ld: 46 duplicate symbols for architecture arm64
clang: error: linker command failed with exit code

以下是我所做的总结:

我清理了 buildingfolder

重新安装所有 pod:pod deintegrate并且比 pod install

将 No Common Blocks 设置为 no

删除所有 -ObjC，如 this Link描述。

我的 Podfile 是:

platform :ios, '13.0'

target 'My Project' do
  # Comment the next line if you don't want to use dynamic frameworks
  use_frameworks!

  # Pods for My Project
  pod 'Firebase/Database'
  pod 'Firebase/Auth'
  pod 'GoogleMobileVision/FaceDetector'
  pod 'Firebase/Firestore'
  pod 'Firebase/MLModelInterpreter'


end

如果有人可以提供帮助，我将不胜感激

编辑

如果有人有其他解决方案可以将 tflite 文件(或 h5 文件:查看我以前的问题)加载到 Xcode 项目中，这也会有所帮助

@保罗·伯斯特里安

这是我粘贴 -ObjC 的位置:

Answer 1

-ObjC 必须在应用程序的 Other Linker Flags 中让 Firebase 正常工作。见 https://github.com/firebase/firebase-ios-sdk/issues/4776有关此问题的更多详细信息。