[OS X TeX] \newcommand problem with sn-jnl.cls

Roussanka Loukanova rl.stpuu at gmail.com
Mon Sep 19 02:50:25 CEST 2022

Dear All,

I have a question that is off the list, but I hope to get it resolved
with your help.

I have to use Springer's style for journals  <sn-jnl.cls> from the
Springer package:
downloadable at:

I have my own style file of defined \newcommand{...}{...} and

Typesetting (by pdflatex) .tex files that use Springer's cluster
produces errors adding my own definitions in .tex files, by:
 \usepackage{exadefs} / or /imput{exdefs.sty}

I get the error even if I add a single definition
in the preamble of Springer's  template file  <sn-article.tex>.
 I get the following error:

ERROR: LaTeX Error: Command \R already defined.

--- TeX said ---
               Or name \end... illegal, see p.192 of the manual.

I would appreciate help.

Best Regards,
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