Again: sidecap figure

[Wolfgang Engelmann]

Am 02.03.21 um 14:46 schrieb Wolfgang Engelmann:
> In my preamble I have
> 
> \usepackage{sidecap}
> % Definition to put legends beside tables and figures
> \newcommand{\TabBesBeg}[1][1.0]{%
>   \let\MyTable\table
>   \let\MyEndtable\endtable
>   \renewenvironment{table}[1]{\begin{SCtable}[#1]##1}{\end{SCtable}}}
> 
> \newcommand{\TabBesEnd}{%
>   \let\table\MyTable
>   \let\endtable\MyEndtable}
> 
> \newcommand{\FigBesBeg}[1][1.0]{%
>   \let\MyFigure\figure
>   \let\MyEndfigure\endfigure
>   \renewenvironment{figure}[1]{\begin{SCfigure}[#1]##1}{\end{SCfigure}}}
> 
> \newcommand{\FigBesEnd}{%
>   \let\figure\MyFigure
>   \let\endfigure\MyEndfigure}
> 
> In the document I use in ERT
> \FigBesBeg} before the float figure and
> \FigBesEnd} after the float figure
> 
> but get this error:
> ! Undefined control sequence.
> l.279 ...lgae (see figure \ref{thalli}).\figBesBeg
> 
> The control sequence at the end of the top line
> of your error message was never \def'ed. If you have
> misspelled it (e.g., `\hobx'), type `I' and the correct
> spelling (e.g., `I\hbox'). Otherwise just continue,
> and I'll forget about whatever was undefined.
> 
> What is wrong?
> Wolfgang

I still struggle with sidecap figure and append a .tar.gz file with an 
(almost) minimal example.
The error I get:

\figBesBeg
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

I used the example in the LyX help file Embedded objects 3.10
With my LyX et Co setup (Debian 11) I get with it
! Package babel Error: Unknown option `ngerman'. Either you misspelled it
(babel)                or the language definition file ngerman.ldf was 
not found.
See the babel package documentation for explanation.
Type  H <return>  for immediate help.

But I can run it with 'show anyway' and the legend placement is 
correctly sidewise.

Could somebody be kind enough to run the example and see whether it 
works in her/his case?

My
LyX Version 2.3.6
(Friday, November 27, 2020)
Library directory: /usr/share/lyx/
User directory: ~/.lyx/
Qt Version (run-time): 5.15.2
Qt Version (compile-time): 5.15.1

Wolfgang
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