Am Montag, dem 20.03.2023 um 12:51 +0000 schrieb Julian Popp:
> Dear LyX users,
>
> I came across an (for me) unexpected behavior in LyX 2.3 that
> probably requires me to change my whole document...
>
> For typesetting units and values correctly, I used the package
> siunitx. Since I got a new notebook and now have LyX 2.3.7 (+MiTeX)
> instead of 2.3.5-1 (in addition to package updates) there is now an
> error about the incompatibility of the packages units and siunitx.
> The issue here is: I do not have the \usepackage{units} in my custom
> document preamble.
>
> After some investigation I found out that LyX in nevertheless
> including the \usepackage{units} in the LaTeX code (export -> LaTeX
> (pdflatex)). See code below.
LyX autoloads the package if you use a construct that requires this
package (e.g., \unitfrac, \unitfracthree, \nicefrac).
> Has anybody else experienced that issue? Recommendations for
> mitigation?
You can prevent autoloading by entering to Document > Settings > Local
Layout:
Provides units 1
But if you now have a LaTeX macro which requires this package (and is
not covered by siunitx), you'll get an "undefined control sequence"
error.
HTH,
Jürgen
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