[Tex/LaTex] comment package : File ended while scanning use of \next

commentserrors

I have this very simple piece of code where I am trying to use the comment package:

\documentclass{article}
\usepackage{comment}

\begin{document}
    ABC
    \begin{comment}123\end{comment}
    XYZ
\end{document}

When I try to build it, I get the following error:

Runaway argument?
! File ended while scanning use of \next.

What is happening!?

Best Answer

Don't indent the begin and end-comment commands:

\documentclass{article}
\usepackage{lipsum}
\usepackage{comment}

\begin{document}
    \lipsum[1]
\begin{comment}
    ABC
\end{comment}
    \lipsum[2]
\end{document}
Related Question