Am Samstag, dem 14.03.2026 um 01:28 +0000 schrieb LIANG Zhuobin:
> Opening the file in LyX 2.5 upgrades it to beamer-lyx24-to-lyx25-old-
> latex.lyx
> The upgraded document contains:
> ```
> \begin_preamble
> %\providecommand{\SetKeys}[2][]{}
> %\usepackage{xkeyval}
> %\usepackage[table]{xcolor}
> \PassOptionsToPackage{table}{xcolor}
> \end_preamble
> ```
> Compilation then fails with
> ```
> ! Undefined control sequence.
> \__hook_toplevel begindocument ->\SetKeys [xcolor]{table}
> l.33 \begin{document}
This does not make sense. \SetKeys is commented out in this preamble
code, and this is code that is definitely not inserted by LyX or
lyx2lyx.
Please provide the full LaTeX log and the LaTeX source that generates
the error.
Thanks,
Jürgen
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