Hi Antony,

The absence of \NewDocumentCommand could suggest that your LaTeX installation 
is too old. Some kind of path messup might also do it, I suppose.

- Peter

> On 5 May 2024, at 16:27 , Antony Unwin <un...@math.uni-augsburg.de> wrote:
> 
> I have recently updated my Mac to R 4.4.0 and the latest version of RStudio.  
> This may or may not be the reason that any Rmd files of mine with citations 
> fail with the following error on knitting to pdf:
> 
> ! Undefined control sequence.
> l.98 \NewDocumentCommand
>                        \citeproctext{}{} 
> 
> Error: LaTeX failed to compile citeTest.tex.
> 
> Knitting to html or to word work fine.  Knitting to pdf without citations 
> works as well.  Does anyone have a solution?
> 
> As a test file I have used the sample Rmd file from Posit with one citation 
> added.
> 
> Thanks for any help
> 
> Antony
> 
> 
> Professor (em.) Antony Unwin
> Mathematics Institute,
> University of Augsburg, 
> 86135 Augsburg, Germany
> 
> 
> 
> 
>       [[alternative HTML version deleted]]
> 
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-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: pd....@cbs.dk  Priv: pda...@gmail.com

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