Text Formatting ⇒ Error: File ended while scanning use of \@argdef

[Maunz]

Hi everyone

I'm currently writing a scientific report where I use siunitx for my SI units. So instead of always typing e.g \SI{2}{\celsius} I wanted to create a new command to faciliate the writing. However, I get the error stated in the title and I have no clue how to make it work. I use a new command for \SI{}{\uL}which does its job. Where am I making a mistake?

Code: Select all

% test
\documentclass{scrartcl}
\usepackage{siunitx}
\sisetup{load-configurations = abbreviations}

\newcommand{\cel}[1]{\SI{#1}{\celsius}

\begin{document}
\cel{2}
\end{document}

Error message:

Runaway argument?
{\SI {##1}{\celsius } \par \begin {document} \cel {2} \end {document}\ETC.
! File ended while scanning use of \@argdef.
<inserted text>
\par
<*> test.tex

[cgnieder]

Hi Maunz,

Welcome to the LaTeX community. There's a closing brace missing after {\celsius}. The error is actually telling you that: the file ended while TeX was still reading the argument definition. Solution:

Code: Select all

\newcommand{\cel}[1]{\SI{#1}{\celsius}}

Regards

[Maunz]

Oh my gosh..really, sometimes I amaze myself . Thanks for stating the obvious!