Another clue: when I run latex on my old Mac, creating a dvi file, and run dvipdf on the dvi file on my new Mac, I get the error message dvips: ! Couldn't find header file: l3backend-dvips.pro (By the way, some of you may be thinking "Jim, just use pdflatex!" but unfortunately it's incompatible with some of the packages I use.) Jim On Fri, Nov 20, 2020 at 11:03 AM James Propp <jamespropp@gmail.com> wrote:

The problem affects dvipdf on my new MacBook running Catalina 10.15.7 but not my old MacBook running High Sierra 10.13.6.

Jim Propp

On Fri, Nov 20, 2020 at 10:49 AM James Propp <jamespropp@gmail.com> wrote:

...

Has anyone else been having problems lately with dvipdf?

My install of dvipdf now converts a multi-page dvi file with actual content into a one-page file containing nothing but white space.

I tried it on a file that compiled properly back in May, and it's not working now.

I reinstalled TexShop and restarted my laptop, but that didn't fix the issue.

(I am trying to do the final upload for an article I've been working on for seven years. So of course something like this would happen...)

Jim Propp