When using preview-latex, I am getting frequent “Unable to load image” messages
in the Emacs Messages buffer. This has started recently, meaning I noticed it
sometime between “a month or so ago” and “maybe about a year.”
Here’s a simple example:
\documentclass[12pt]{article}
\begin{document}
Inline math: $X+\gamma$ blah blah $2-\alpha+1$.
\end{document}
When I run preview-buffer (or any other preview command), I get something like:
Type ‘^C ^L’ to display results of compilation.
locating previews...
Type ‘^C ^L’ to display results of compilation.
Unable to load image (image :file
/Users/braunm/_region_.prv/tmp45041wav/pr1-1.png :type png :ascent 85)
Unable to load image (image :file
/Users/braunm/_region_.prv/tmp45041wav/pr1-2.png :type png :ascent 75)
But the images appear correctly in the document nonetheless, and are exactly in
the right files. The only reason I care about these messages is that 1) they
are there for a reason and error messages just bother me; and 2) they might be
related to other problems from a package I am working on. I’m hoping if I can
figure out why I’m now getting these messages, it will help with the other
project.
Other relevant info: My computer is a Mac Pro running MacOS 11.1 (but the
problem was there with MacOSX too). I typically use Aquamacs (based on Emacs
25), but I can replicate it on self-compiled builds of the “official” Emacs
27.1 and 28.0.50, as well as the emacsformacosx.com<http://emacsformacosx.com>
binary. I am using AucTeX 12.3.1, but it happens on Aquamacs with AucTeX 12.2.2
also. My Ghostscript version is 9.53.3, but I can replicate the messages with
gs 9.27. I get the messages when I set preview-image-type to either png,
dvipng, tiff, or jpeg. I’ve even tried with a nearly empty .emacs file, and the
messages are still there, even though the images show up in the right places.
So I’ve done what I can to isolate where these error messages are coming from.
I wish I could be more precise about when I first starting noticing them, but
they haven’t caused problems until now. The best I can tell is that emacs is
generating nil images that show up in ns_load_image in nsimage.m, but not being
familiar with Obj-C, I’ve gone as far as I can.
Any ideas?
Thanks,
--------------------------
Michael Braun
Associate Professor of Marketing, and
Corrigan Research Professor
Cox School of Business
Southern Methodist University
Dallas, TX 75275
[email protected]<mailto:[email protected]>
