gh action fails with default pdf engine when using custom font. renders with lualatex without issues

[novica]

Description

Hi,

Not sure if this is a quarto issue, or quarto actions issue, or something else.

Sample repository with a reprex is here: https://github.com/novica/quarto-issue

When running the gh action with the default xelatex I get an invalid font error. Running the same with the lualatex engine renders with success. The custom font is Ubunut, it is installed in a step in the workflow.

[mcanouil]

I cannot reproduce using your repository:
https://github.com/mcanouil/quarto-issue/actions/runs/13290643732

Edit: Your reprex is not setup to reproduce the issue.

[novica]

Hi. Yes sorry. I think I left the repository in the working state. But in the gh action logs you can see the error when it fails.

[mcanouil]

You need to try locally and see the log file produced and/or modify your workflow to upload the log file as assets for the workflow.

[mcanouil]

This being said, the error is kind of a classical LaTeX engine error as you can see with an Internet search: xdvipdfmx:fatal: Invalid font: -1 (0)

• https://duckduckgo.com/?q=xdvipdfmx%3Afatal%3A+Invalid+font%3A+-1+(0)

I don't think that's a Quarto or Quarto-related bug, but a plain LaTeX issue with fonts.

[novica]

I hope I managed to capture the log here: https://github.com/novica/quarto-issue/actions/runs/13291012938

But if this is not a quarto issue then I guess there is nothing more to be done.

[mcanouil]

See any online thread about this particular error to have a fix/workaround, or do as you did and change the engine.

[novica]

Thanks for your quick answers @mcanouil. I think I am okay with just changing the engine at this point. I will document the repository a bit better in case anyone else bumps into the issue.