i am getting error for this code

[sreebhargavibalija]

sreebhargavi.balija@MREM15FE9764 realtime_object_recognition % python3 real_time_object_detection.py --prototxt MobileNetSSD_deploy.prototxt.txt --model MobileNetSSD_deploy.caffemodel --source webcam

[INFO] loading model...
[libprotobuf ERROR /private/var/folders/nz/vv4_9tw56nv9k3tkvyszvwg80000gn/T/pip-req-build-gi6lxw0x/opencv/3rdparty/protobuf/src/google/protobuf/text_format.cc:292] Error parsing text-format opencv_caffe.NetParameter: 3:10: Expected "{", found "-".
Traceback (most recent call last):
File "real_time_object_detection.py", line 40, in
net = cv2.dnn.readNetFromCaffe(args["model"], args["prototxt"])
cv2.error: OpenCV(4.4.0) /private/var/folders/nz/vv4_9tw56nv9k3tkvyszvwg80000gn/T/pip-req-build-gi6lxw0x/opencv/modules/dnn/src/caffe/caffe_io.cpp:1157: error: (-2:Unspecified error) FAILED: ReadProtoFromTextFile(param_file, param). Failed to parse NetParameter file: MobileNetSSD_deploy.caffemodel in function 'ReadNetParamsFromTextFileOrDie'