Latex compilation breaks

[iarayad]

Description

I am using a myst template created by me to compile a pdf that includes latex and Python code.

Whenever I compile the document in versions v1.1.29 or newer, I get the error TypeError: Cannot read properties of undefined (reading 'map') . In older versions, the pdf compiles just fine.

Unfortunately, I have not been able to produce a minimal example. There is a .md file that I include which breaks things down, but I don't know what part exactly. For example, if I comment out the whole file at once, compilation works, but if I comment it out in "parts", then compilation may still break.

The file that makes compilation break contains math cells using :::{math}, ```{math}, :::{admonition}, ```{embed}, and a markdown list. The files that do not break compilation do not use :::{math}, ```{math}, or :::{admonition}, so the error may be related to these.

Here is an extended version of the log in case it helps:

...
📖 Built algorithms.ipynb in 285 ms.
📖 Built benchmark.md in 279 ms.
📖 Built conclusion.md in 278 ms.
📖 Built finding_effective_model.ipynb in 279 ms.
📖 Built implementation.md in 272 ms.
📖 Built scipost-template/python_style.tex in 259 ms.
📖 Built scipost-template/README.md in 258 ms.
📖 Built scipost-template/template.tex in 257 ms.
TypeError: Cannot read properties of undefined (reading 'map')

It seems to be an uncaught Javascript error.

Proposed solution

I don't know.

Additional notes

The code used to reproduce the error can be found here by running myst build paper.md --pdf. The merge request jobs can be found here. I am sorry that I cannot provide a shorter failing example.

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[akhmerov]

For completeness, here's a reproduction script (non-minimal), and assumes that myst 1.1.34 is installed:

git clone ssh://git@gitlab.kwant-project.org:443/qt/pymablock.git --branch paper --depth 1
cd pymablock/paper
myst build paper.md

Expected: export/paper.pdf is created What actually happens: no output, uncaught JS error in terminal.

Extra observations:

• Removing inclusion of algorithms.md from paper.md fixes the build
• Copying algorithms.md into paper.md, and removing jupytext frontmatter fixes the build.

[rowanc1]

Thank you for the report! Have been able to reproduce the bug locally, but haven't figured it out quite yet. @fwkoch can you take a look at this?!

[fwkoch]

This was a problem with how myst was parsing references with implicit labels, e.g. {eq}`unitarity` - I fixed it up here: https://github.com/executablebooks/mystmd/pull/808

I'll plan to publish a new release today with this fix.

[fwkoch]

Ok - this is released with v1.1.36 - hopefully that works well for you.

Let us know if you still run into problems or have any other questions with your MyST template!

[iarayad]

awesome, thank you!!