{\externalfigure[XY\currentheadnumber][width=0.5\textwidth]}
                                                      ^
Alan

On Tue, May 19, 2009 at 11:41 AM, Willi Egger <w.egger@boede.nl> wrote:

> Hi all,
>
> I should call the current head number in a figure.
>
> I am getting the following error:
>
> ! Undefined control sequence.
> <argument> \reporttextprefixerror
>
> \secondoftwoarguments #1#2->#2
>
> \rightlabeltext ...ts \let \reporttextprefixerror
>                                                  \doreporttextprefixerror
> \...
> \labeltexts ...eftlabeltext {#1}#2\rightlabeltext
>                                                  {#1}
> \doifundefinedelse #1->\ifcsname #1
>                                   \endcsname \@EA \secondoftwoarguments
> \el...
> <argument> ... {\??ef \??ef XY\currentheadnumber }
>                                                   {\useexternalfigure
> [\s!d...
> ...
> l.14 ...Y\currentheadnumber][width=0.5/textwidth]}
>
> Using:
>
> This is LuaTeX, Version beta-0.40.1-2009050813 (Web2C 7.5.7)
> ConTeXt  ver: 2009.05.14 16:44 MKIV  fmt: 2009.5.19  int: english/english
>
> Minimal example attached
>
> KR
> Willi
>
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>


-- 
Alan