Download mobilenet-ssd model failed

[rachel_r_Intel]

when trying to download mobilenet-ssd model sometimes occurred error:

/opt/intel/openvino/deployment_tools/tools/model_downloader$ sudo python3 ./downloader.py --name mobilenet-ssd
################|| Downloading models ||################

========== Downloading /opt/intel/openvino_2019.3.376/deployment_tools/open_model_zoo/tools/downloader/public/mobilenet-ssd/mobilenet-ssd.prototxt
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 595, in urlopen
    self._prepare_proxy(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 818, in _prepare_proxy
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 326, in connect
    ssl_context=context)
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 332, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "/usr/lib/python3.6/ssl.py", line 407, in wrap_socket
    _context=self, _session=session)
  File "/usr/lib/python3.6/ssl.py", line 817, in __init__
    self.do_handshake()
  File "/usr/lib/python3.6/ssl.py", line 1077, in do_handshake
    self._sslobj.do_handshake()
  File "/usr/lib/python3.6/ssl.py", line 689, in do_handshake
    self._sslobj.do_handshake()
ConnectionResetError: [Errno 104] Connection reset by peer

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/requests/adapters.py", line 449, in send
    timeout=timeout
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 639, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 398, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='raw.githubusercontent.com', port=443): Max retries exceeded with url: /chuanqi305/MobileNet-SSD/ba00fc987b3eb0ba87bb99e89bf0298a2fd10765/MobileNetSSD_deploy.prototxt (Caused by ProxyError('Cannot connect to proxy.', ConnectionResetError(104, 'Connection reset by peer')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./downloader.py", line 65, in try_download
    chunk_iterable = start_download()
  File "./downloader.py", line 244, in <lambda>
    lambda: model_file.source.start_download(session, CHUNK_SIZE)):
  File "/opt/intel/openvino_2019.3.376/deployment_tools/open_model_zoo/tools/downloader/common.py", line 172, in start_download
    response = session.get(self.url, stream=True, timeout=DOWNLOAD_TIMEOUT)
  File "/usr/local/lib/python3.6/dist-packages/requests/sessions.py", line 546, in get
    return self.request('GET', url, **kwargs)
  File "/usr/local/lib/python3.6/dist-packages/requests/sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python3.6/dist-packages/requests/sessions.py", line 646, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python3.6/dist-packages/requests/adapters.py", line 510, in send
    raise ProxyError(e, request=request)
requests.exceptions.ProxyError: HTTPSConnectionPool(host='raw.githubusercontent.com', port=443): Max retries exceeded with url: /chuanqi305/MobileNet-SSD/ba00fc987b3eb0ba87bb99e89bf0298a2fd10765/MobileNetSSD_deploy.prototxt (Caused by ProxyError('Cannot connect to proxy.', ConnectionResetError(104, 'Connection reset by peer')))
########## Error: Download failed

################|| Post-processing ||################

FAILED:
mobilenet-ssd

OpenVINO 2019R3 and  OpenVINO 2019R3.1 on Ubuntu 18.04 both have this problem.

[Sahira_Intel]

Hi Rachel,

Are you installing the ROS OpenVINO Toolkit? 

Did you go through and install all the dependencies here?

Sincerely,

Sahira