我正在尝试使用Twilio在可编程聊天中发送图像。我已经从UIImage创建了数据，并使用media选项将其发送。但是由于某种原因，我的应用程序在某些Twilio SDK文件中崩溃了。我要附加崩溃屏幕快照和我的代码。

func sendImage(image: UIImage) {
        //get the JPEG data for this image
        let data = image.jpegData(compressionQuality: 0.8)!

        if let messages = TwilioHelper.sharedInstance.getcurrentChannel()?.messages {
            let inputStream = InputStream(data: data)
            let options = TCHMessageOptions().withMediaStream(inputStream,contentType: "image/jpeg",defaultFilename: "image.jpg",onStarted: {
                                                                print("Media upload started")
            },onProgress: { (bytes) in
                                                                print("Media upload progress: \(bytes)")
            }) { (mediaSid) in
                print("Media upload completed")
            }
            print("sending photo")
            messages.sendMessage(with: options) { result,msg in
                if result.isSuccessful() {
                  print("success")
                } else {
                    if let error = result.error {
                        print("error sending: \(error.localizedDescription) with \(error.code)")
                    } else {
                        print("error sending: Twilio service error")
                    }
                }
            }
        } else {
            print("can't get channel messages")
        }

    }

Crash file screen shot