most recent 30 from tex.stackexchange.com 2025-08-06T01:25:08Z https://tex.stackexchange.com/feeds/question/745667 https://creativecommons.org/licenses/by-sa/4.0/rdf https://tex.stackexchange.com/q/745667 0 bahman azimii https://tex.stackexchange.com/users/400549 2025-08-06T08:42:14Z 2025-08-06T08:44:29Z

<p>I am experiencing a very persistent and unusual issue with the <code>ocgx2</code> package in TeX Live 2025 on my Linux system (Ubuntu/Debian or similar). The <code>\ocgbutton</code> command consistently results in an <code>Undefined control sequence</code> error, even though <code>ocgx2.sty</code> appears to load successfully in the log.</p> <p>Here is a minimal working example (MWE) that reproduces the error:</p> <pre class="lang-latex prettyprint-override"><code> \documentclass{article} \usepackage{ocgx2} \usepackage{hyperref} % hyperref is often loaded with ocgx2 \begin{document} Hello, world! % This line causes the error \ocgbutton[ocgname={testocg}, onclick={TOGGLE}]{Toggle Test OCG} \begin{ocg}{Test OCG}{testocg}{1} This content should toggle visibility with the button. \end{ocg} \end{document} </code></pre> <p>And here is the full lualatex log output from compiling the MWE (for 36.tex):</p> <pre><code> This is LuaHBTeX, Version 1.21.0 (TeX Live 2025) restricted system commands enabled. (./36.tex LaTeX2e &lt;2025-08-06&gt; patch level 2 L3 programming layer &lt;2025-08-06&gt; (/usr/local/texlive/2025/texmf-dist/tex/latex/base/article.cls Document Class: article 2024/06/29 v1.4n Standard LaTeX document class (/usr/local/texlive/2025/texmf-dist/tex/latex/base/size10.clo)) (/usr/local/texlive/2025/texmf-dist/tex/latex/ocgx2/ocgx2.sty (/usr/local/texlive/2025/texmf-dist/tex/latex/ocgx2/ocgbase.sty (/usr/local/texlive/2025/texmf-dist/tex/latex/media9/pdfbase.sty (/usr/local/texlive/2025/texmf-dist/tex/latex/l3backend/l3backend-luatex.def))) ) (/usr/local/texlive/2025/texmf-dist/tex/latex/hyperref/hyperref.sty (/usr/local/texlive/2025/texmf-dist/tex/generic/iftex/iftex.sty) (/usr/local/texlive/2025/texmf-dist/tex/latex/graphics/keyval.sty) (/usr/local/texlive/2025/texmf-dist/tex/latex/kvsetkeys/kvsetkeys.sty) (/usr/local/texlive/2025/texmf-dist/tex/generic/kvdefinekeys/kvdefinekeys.sty) (/usr/local/texlive/2025/texmf-dist/tex/generic/pdfescape/pdfescape.sty (/usr/local/texlive/2025/texmf-dist/tex/generic/ltxcmds/ltxcmds.sty) (/usr/local/texlive/2025/texmf-dist/tex/generic/pdftexcmds/pdftexcmds.sty (/usr/local/texlive/2025/texmf-dist/tex/generic/infwarerr/infwarerr.sty))) (/usr/local/texlive/2025/texmf-dist/tex/latex/hycolor/hycolor.sty) (/usr/local/texlive/2025/texmf-dist/tex/latex/hyperref/nameref.sty (/usr/local/texlive/2025/texmf-dist/tex/latex/refcount/refcount.sty) (/usr/local/texlive/2025/texmf-dist/tex/generic/gettitlestring/gettitlestring.sty (/usr/local/texlive/2025/texmf-dist/tex/latex/kvoptions/kvoptions.sty))) (/usr/local/texlive/2025/texmf-dist/tex/latex/etoolbox/etoolbox.sty) (/usr/local/texlive/2025/texmf-dist/tex/generic/stringenc/stringenc.sty) (/usr/local/texlive/2025/texmf-dist/tex/latex/hyperref/pd1enc.def) (/usr/local/texlive/2025/texmf-dist/tex/generic/intcalc/intcalc.sty) (/usr/local/texlive/2025/texmf-dist/tex/latex/hyperref/puenc.def) (/usr/local/texlive/2025/texmf-dist/tex/latex/url/url.sty) (/usr/local/texlive/2025/texmf-dist/tex/generic/bitset/bitset.sty (/usr/local/texlive/2025/texmf-dist/tex/generic/bigintcalc/bigintcalc.sty)) (/usr/local/texlive/2025/texmf-dist/tex/latex/base/atbegshi-ltx.sty)) (/usr/local/texlive/2025/texmf-dist/tex/latex/hyperref/hluatex.def (/usr/local/texlive/2025/texmf-dist/tex/latex/base/atveryend-ltx.sty) (/usr/local/texlive/2025/texmf-dist/tex/latex/rerunfilecheck/rerunfilecheck.sty (/usr/local/texlive/2025/texmf-dist/tex/generic/uniquecounter/uniquecounter.sty ))) (./36.aux) (./36.out) (./36.out) ! Undefined control sequence. l.9 \ocgbutton [ocgname={testocg}, onclick={TOGGLE}]{Toggle Test OCG} ? </code></pre> <p>I have already performed the following extensive troubleshooting steps, but the issue persists:</p> <pre><code>Initial installation check: Ran sudo tlmgr update --all. tlmgr reported 'no updates available', indicating the installation was up-to-date at the time. Engine neutrality check: Tested the MWE with both lualatex and pdflatex (using the same TeX Live 2025 installation). Both engines produced the exact same Undefined control sequence error for \ocgbutton, confirming the issue is not engine-specific. Complete, clean reinstallation of TeX Live 2025 from an ISO image: Uninstallation: Completely uninstalled the previous TeX Live installation. This involved: Deleting the main installation directory: sudo rm -rf /usr/local/texlive/2025 Deleting user configuration directories: rm -rf ~/.texlive2025 (and ~/texmf after confirmation). Manually removing TeX Live entries from PATH in shell configuration files (e.g., ~/.bashrc). ISO Download: Downloaded the full texlive2025-20250308.iso (6.0GB) from an Iranian CTAN mirror (https://ctan.yazd.ac.ir/systems/texlive/Images/). Installation from ISO: Mounted the ISO: sudo mount -o loop /path/to/downloaded/texlive2025-20250308.iso /mnt/texlive_iso (received read-only warning, which is normal). Navigated to the mounted directory: cd /mnt/texlive_iso Ran the installer: sudo ./install-tl (selected 'Full installation'). The install-tl.log confirmed a successful installation, including the ocgx2 package. PATH setup: Correctly set the PATH environment variable to the new TeX Live installation (/usr/local/texlive/2025/bin/x86_64-linux). Persistent loading confirmation: In all compilation attempts (both before and after reinstallation), the log clearly shows ocgx2.sty being loaded successfully from /usr/local/texlive/2025/texmf-dist/tex/latex/ocgx2/ocgx2.sty. </code></pre> <p>Given that a clean reinstallation from ISO did not resolve the issue, and the package appears to load, I suspect there might be a very specific environment interaction, a highly unusual system-level problem affecting LuaTeX's/pdfTeX's ability to process package definitions, or an extremely rare latent issue with the ocgx2 package itself (though this is highly improbable for such a widely used package).</p> <p>Any insights or further debugging steps would be greatly appreciated. Thank you in advance for your help!</p>

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