Favicon broken on web page

[PaulWAyers]

At least on my computer, the favicon for the web page is broken.

[sahilk45]

Hi @PaulWAyers ,
I came across your discussion regarding the favicon issue in Sphinx, and I was wondering if you could help me with a related issue. I am trying to build a webpage using Sphinx for Grid project, but I am encountering errors during the build process.
Here’s the error I’m getting when I run:

> sphinx-build -b html . _build

Error details:

Running Sphinx v8.2.3
loading translations [en]... done

Extension error!

Versions
========

* Platform:         win32; (Windows-11-10.0.22631-SP0)
* Python version:   3.13.2 (CPython)
* Sphinx version:   8.2.3
* Docutils version: 0.21.2
* Jinja2 version:   3.1.6
* Pygments version: 2.19.1

Traceback
=========

sphinx.errors.ExtensionError: Could not import extension nbsphinx_link (exception: No module named 'nbsphinx_link')

I believe this might be related to missing dependencies or incorrect configurations in conf.py.

Could you please guide me on:

1. How to properly set up and configure Sphinx to generate the webpage?
2. Any specific steps to resolve this extension error?

I would really appreciate your help!

Best regards,
SAHIL KUMAR