Error de OpenCV: el encabezado Core.hpp debe compilarse como C ++

Yo he tratadoCore.hpp, Base.hpp header must be compiled as C++ error. Tengo BITCODE configurado comoNO.

#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp>

@interface OpenCV : NSObject
    /// Converts a full color image to grayscale image with using OpenCV.
+ (nonnull UIImage *)cvtColorBGR2GRAY:(nonnull UIImage *)image;
+ (cv::Mat)cvMatFromAdjustedUIImage:(UIImage *)image;
+ (cv::Mat)cvMatFromUIImage:(UIImage *)image;
+ (cv::Mat)cvMatGrayFromUIImage:(UIImage *)image;
+ (cv::Mat)cvMatGrayFromAdjustedUIImage:(UIImage *)image;
@end

En miOpenCVSample.mm He incluido#import "OpenCV.h en el encabezado

Git:https://github.com/n1tesh/OpenCV-Demo

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