Error publishing extension created in IsaacSim

Isaac Sim Version

4.2.0

Operating System

Windows 10

We created an extension called ielabs.build.mqtt and we wish to publish it for the IsaacSim community to use. When we try to “Publish” the extension, it throws an error in the IsaacSim terminal:

[Error] [omni.kit.registry.nucleus.utils.http_utils] publish request failed: status code: 405, content: b’\xef\xbb\xbf<?xml version="1.0" encoding="utf-8"?>UnsupportedHttpVerbThe resource doesn't support specified Http Verb

Things I’ve tried:

Publishing Extensions — Omniverse Kit 106.3.0 documentation
Followed the instructions in this document, but couldn’t find repo.toml. My file says:

How do we publish this extension for the IsaacSim community to use?

Thanks in advance!