TemplateNotFound/Theme Error when switching to Furo from other Sphinx themes

[ETA444]

Hi everyone! I'm new to the Furo theme and first off, I want to extend a big thanks to the creators for this amazing theme and the well-documented pages. They've been extremely helpful as I build documentation for my first PyPI project. I also learned about a few great Sphinx extensions thanks to the recommendations section in the Furo docs.

I wanted to share a specific issue I encountered while switching from another Sphinx theme to Furo, which might save some of you a few Google searches.

Issue:

After switching to Furo, I ran into an error during the build process due to incompatible html_sidebars settings in conf.py:

html_sidebars = {
    '**': [
        'about.html',
        'navigation.html',
        'relations.html',
        'searchbox.html',
        'donate.html',
    ]
}

This resulted in the following error:

Theme error:
An error happened in rendering the page authors.
Reason: TemplateNotFound("'about.html' not found in ...

[ETA444]

Solution:

In your conf.py, comment out or delete the html_sidebars about.htmlsettings, for me this resulted in a successful build!

P.s. I hope it was in the correct discussion topic and if not please let me know if I need to switch it!