pdf TOC does not render with dollarmath because "You can't use `\spacefactor' in math mode"

[baggiponte]

Describe the problem

When compiling the book to pdf, if there is math inserted with dollarmath (i.e. inside $$), the TOC/Contents page at the beginning of the book is not rendered.

I managed to solve this by reverting the _build cache to a state where the index compiled (using git) and the index builds, but this does not solve the problem. The complete error message is:

! You can't use `\spacefactor' in math mode.
\@->\spacefactor
                 \@m {}
l.186 ...2020) to convert the code into a \(\LaTeX
                                                  \) publication, thanks to ...

?

See full log attached. jupyter_book.log

Link to your repository or website

https://github.com/baggiponte/thesis-forecasting

Steps to reproduce

1. Insert math in a chapter using dollar notations
2. run jupyter book build --builder=pdflatex . inside the book directory

The version of Python you're using

3.9.7

Your operating system

macOS 12.0.1

Versions of your packages

Jupyter Book      : 0.12.0
External ToC      : 0.2.3
MyST-Parser       : 0.15.2
MyST-NB           : 0.13.1
Sphinx Book Theme : 0.1.6
Jupyter-Cache     : 0.4.3
NbClient          : 0.5.5

Additional context

Book directory in my repo is here.

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[mmcky]

Thanks for reporting this @baggiponte -- looks like an interesting thesis :-).

@AakashGfude any idea what might be causing this?

[AakashGfude]

Hi @baggiponte, sorry for getting to this one so late. Do you still have this issue? It seems to be running well on my end.

What I did was:

• clone your repo
• Add in capitulos/marco-teorico/modelo-estandar

 $$
  \gamma = 0.5
  $$

• run jb build --builder=pdflatex . in tesis folder.