Cannot find proxy with ID

I have been trying to register appium CLI with selenium grid but it is not working. I have this error: Grid registration error: Cannot find proxy with ID

Attach Appium log and node json filenode.txt (620 Bytes) appium log.txt (478 Bytes)

Reproduce step

  1. Have the above json file in your machine
  2. appium --port 4722 --nodeconfig config_ios.json

I am still getting the same error.

Any suggestions ? I believe it may be something trivial which I have overlooked. Thanks for the help.