objective-c - Xcode 11.2.1 通过 app-Swift.h 上的错误（找不到协议声明）

Question

我最近迁移了 Xcode 10.3 - 11.2.1，这是Objective-C 和 Swift的项目组合，我修复了大部分问题，最后我卡在了 app-Swift.h 文件中。它显示错误“找不到协议声明”。它在 Xcode 10.2 中运行良好而不是在 Xcode 11.2.1 中

请为我提供解决此问题的建议。

下面的 Swift 代码

extension FaceScanHelper: AcuantHGLiveFaceCaptureDelegate {
    
    func liveFaceDetailsCaptured(liveFaceDetails: LiveFaceDetails?) {
        
        if(liveFaceDetails?.faceRect != nil && liveFaceDetails?.image != nil){
            
            faceImage = liveFaceDetails?.image
            
            let translatedFaceRect = self.calculateFaceRect(faceBounds: (liveFaceDetails?.faceRect?.toCGRect())!, clearAperture:(liveFaceDetails?.cleanAperture?.toCGRect())!)
            
            
            var width = (translatedFaceRect.width)
            width = 1.1*width
            
            var height = (translatedFaceRect.height)
            height = 1.3*height
            
            let x = (translatedFaceRect.origin.x) + ((translatedFaceRect.width)-width)
            let y = (translatedFaceRect.origin.y) + ((translatedFaceRect.height)-height)
            let faceRect =  CGRect.init(x: x, y: y, width: width, height:height)
            self.faceOval?.removeFromSuperlayer()
            faceOval = CAShapeLayer()
            faceOval?.path = UIBezierPath.init(ovalIn: faceRect).cgPath
            faceOval?.fillColor = UIColor.clear.cgColor
            faceOval?.strokeColor = UIColor.init(rgb: APP_THEME_COLOR).cgColor //UIColor.red.cgColor
            faceOval?.lineWidth = 5.0
            
            self.videoPreviewLayer.addSublayer((faceOval)!)
            if(liveFaceDetails?.isLiveFace)!{
                
                if let face = liveFaceDetails?.image{
                    if(!isReported){
                        isReported = true
                        self.delegate?.liveFaceCaptured!(face, error: nil)
                    }
                }
            }
        }else if(liveFaceDetails == nil || liveFaceDetails?.faceRect == nil){
            self.faceOval?.removeFromSuperlayer()
        }
    }
}

请参阅屏幕截图下方的 Swift 文件方法声明

在同一个 app-Swift.h 中查看错误列表及其下面的屏幕截图