LaTeX image generation error

[ksk...@gmail.com]

I just updated a project to run with the latest CLI (0.8.1), and mostly things are working except for "pretext generate latex-image": I get an error of the form

...

converting image-5.tex to image-5.pdf
cropping image-5.pdf to cropped-image-5.pdf
critical: Not encrypted file

Failed to generate latex-image elements.  Exiting...

I'm guessing the issue is hiding somewhere else (maybe in the project configuration), but where?

Kiran

[Valerio Monti]

Hi Kiran,

yesterday I got a new computer and I started to install PreTeXt and friends and I get the same error message. Luckily, I remembered of this thread

https://groups.google.com/g/pretext-support/c/bHNg69j_mCo/m/wSI7nzWsAAAJ

so the only things you should need is run this command (ignore the warnings about incompatibility with pdfcropmargins)

pip install pypdf2==1.26

After that, you should be able to generate images again.

Hope this helps.

Valerio

[Juan Carlos Bustamante]

Hello,

Thanks Valerio, that works, I ran in the same problem after updating. But there's something that looks quite odd to me : besides the latex figures, the fiox you suggest also allows to obtein the sage-generated, and the asymptote generated elements. While I can guess that this may be needed to obtain the pdf images, I find it pretty strange that this package is also needed for the 3d sage plot. Is that normal?

JC

[Sean Fitzpatrick]

Asymptote images are generated on a remote server, so they should work regardless of what additional programs are installed.

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[Juan Carlos Bustamante]

Yes Sean, that's the point. It looks that the asset generation crashes as a whole whenever there is a piece of it not working. One would expect that sage and asymptote are independent from pypdf2, but this is not the case.

[Oscar Levin]

This was a design decision, but we made it without too much thought, so do try to convince us we are wrong.  The idea is that if a user wants to generate all assets, if any fails, then we might as well stop and fix it.  If you just wanted asymptote, use pretext generate asymptote.  But like I said, we could change this if you think it is important.

[Juan Carlos Bustamante]

I see. Maybe a reasonable improvement would be to have a more detailed error message, it took me a while to understand that the pdf problem was also affecting sage3d. As the error message was about pdf images only. Perhaps the error message should include "to generate sage elements try pretext generate sage"... 

JC

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[Steven Clontz]

I'm inclined to try to buid everything first, and if something fails, we exit with an error code and list the failed components. E.g. if `pretext generate` failed on sageplots and asymptote, but latex-images worked and there were no other kinds of generated assets, we would tell the best error message we can, so folks can try to fix issues and `pretext build sageplot` and `pretext build asymptote`.