fetch http://10.30.170.254:8181/rests/notif/data-change-event-subscription/opendaylight-inventory:nodes/datastore=CONFIGURATION/scope=BASE failed: 404
Traceback (most recent call last):
  File "ssereceiver.py", line 77, in <module>
    main()
  File "ssereceiver.py", line 59, in main
    loop.run_until_complete(get_events())
  File "/usr/lib/python3.6/asyncio/base_events.py", line 484, in run_until_complete
    return future.result()
  File "ssereceiver.py", line 17, in get_events
    "http://" + args.controller + ":8181" + args.uri, session=client
  File "/usr/local/lib/python3.6/dist-packages/aiohttp_sse_client/client.py", line 126, in __aenter__
    await self.connect(self._max_connect_retry)
  File "/usr/local/lib/python3.6/dist-packages/aiohttp_sse_client/client.py", line 244, in connect
    raise ConnectionError(error_message)