Not compatible with IEEEtran document class - Error: Command \subparagraph undefined

[AlexanderWillner]

MWE:

\documentclass{IEEEtran}
\usepackage[tagged]{accessibility}
\begin{document}
Test
\end{document}

Expected: generated tagged PDF

Instead: /usr/local/texlive/2019basic/texmf-dist/tex/latex/accessibility/accessibility.sty:1075: LaTeX Error: Command \subparagraph undefined.

[viktoriasee]

Thanks for reporting. I can confirm the issue. However, right now this package does not produce valid tagging. The most severe bug we have now is #12. Unless this is resolved for the standard classes it does not make sense to care about less common classes.