出现错误：类型为“ ARReferenceObject”的值没有成员“合并”：正在运行ScanningApp ARKit2 beta

Question

调用此扩展名时发生错误（注意：此代码未从原始代码（从Apple下载）修改而来）

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extension ARReferenceObject {
    func mergeInBackground(with otherReferenceObject: ARReferenceObject, completion: @escaping (ARReferenceObject?, Error?) -> Void) {
        DispatchQueue.global(qos: .background).async {
            do {
                let mergedObject = try self.merge(otherReferenceObject)
                DispatchQueue.main.async {
                    completion(mergedObject, nil)
                }
            } catch {
                DispatchQueue.main.async {
                    completion(nil, error)
                }
            }
        }
    }
}

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还有其他人遇到这个问题吗？谢谢！