Hi, Paul.
Thanks for your help with this. I apologize for the cross-posting. I
posted on tex.stackexchange and then thought, "Wait a minute--isn't
there a LyX mailing list? That's where I should ask!" So I found it and
posted there. I'm sorry for any confusion.
You wrote:
> Your file works fine for me (LyX 2.3.2, Linux Mint 18.3). What
version of LyX are you using, what OS (probably doesn't matter, but you
never know), and have you used this file successfully in the past?
I'm using LyX 2.3.2 on Windows 10. I recently did a clean install of
Windows 10 and then reinstalled LyX 2.3.2, along with my customized
user.bind file. Yesterday was the first time I tried to use LyX since
then, and that's when I started getting the "unknown function" message.
The user.bind file has worked just fine in the past.
If I take just one of the commands from the user.bind file, like this one:
command-sequence font-emph
and enter it into LyX's command buffer, it works just fine.
I've tried the user.bind file with LyX 2.3.1-1 as well, and it doesn't
work there, either.
By the way, I've always reconfigured LyX after installing the user.bind
file, which I've placed in ~\AppData\Roaming\LyX2.3\ as specified under
Help > About.
I'm pretty good with LyX, but this one has me stumped.
Thanks again for your help.
Best wishes,
Jack Lyon
The Editorium
http://www.editorium.com