LaTeX warning explanation needed [RESOLVED]

[Rich Shepard]

On Wed, 13 Oct 2021, Rich Shepard wrote:

> The document now compiles without error using TeXLive2021 (and the 2020
> version of texlive-extra), but the bibliography still does not print in the
> PDF.

I copied the main doc's .lyx to bit-by-bit.lyx and deleted everything but
the title page and the paragraphs with the citations from this copied file.

Then I copied the old file to the new one section-by-section, saving and
compiling each addition. The bibliography was in the resulting PDF with each
addition.

No differences in the two files in the copied sections, but the new one is
2K smaller in size. So there must be something invisible in the original
file, but I'm not going to spend time looking for it since I now have a
complete copy.

Wow! Not before in the 20+ years I've used LyX have I had this issue.

Thanks to all of you who offered help.

Stay well everyone,

Rich