On 2025-04-06 12:46:03 +0000, db said:

I have a LaTeX file intended as a submission to an Elsevier
journal, that compiles with a spurious error. A mini-example
is at www.dieterbritz.dk/err.zip.

404
Not Found
The resource requested could not be found on this server!

It calls on the file
elsarticle.cls, included. When I compile it with pdflatex,
I get the apparent error

! Missing } inserted.
<inserted text>
}
l.32 \end{frontmatter}

?

but when I persist, it compiles correctly. So this is
not an error. I can't submit the paper because the journal
will reject it as having an error, so I must fix this.
What is wrong here?

--
Athel -- French and British, living in Marseilles for 38 years; mainly
in England until 1987.

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Am 06.04.2025 um 14:46 schrieb db:

I have a LaTeX file intended as a submission to an Elsevier
journal, that compiles with a spurious error. A mini-example
is at www.dieterbritz.dk/err.zip. It calls on the file
elsarticle.cls, included. When I compile it with pdflatex,
I get the apparent error

! Missing } inserted.
<inserted text>
}
l.32 \end{frontmatter}

?

but when I persist, it compiles correctly. So this is
not an error. I can't submit the paper because the journal
will reject it as having an error, so I must fix this.
What is wrong here?

Obviously a missing } was inserted. Check the file for an equal number
of { and }.

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db schrieb:

I have a LaTeX file intended as a submission to an Elsevier
journal, that compiles with a spurious error. A mini-example
is at www.dieterbritz.dk/err.zip. It calls on the file
elsarticle.cls, included. When I compile it with pdflatex,
I get the apparent error

! Missing } inserted.
<inserted text>
}
l.32 \end{frontmatter}

?

but when I persist, it compiles correctly. So this is
not an error. I can't submit the paper because the journal
will reject it as having an error, so I must fix this.
What is wrong here?

mini.tex has:

\abstract{...}


But with elsarticle.cls abstract is to be used as an environment:

\begin{abstract}...\end{abstract}


According to elsarticle.cls the environment "abstract" is defined as:

\newbox\absbox
\let\@elsarticleabstitle\@empty %*%
\def\abstracttitle#1{\gdef\@elsarticleabstitle{#1}} %*%
\abstracttitle{Abstract} %*%
\renewenvironment{abstract}{\global\setbox\absbox=\vbox\bgroup
\hsize=\textwidth\def\baselinestretch{1}%
\noindent\unskip\textbf{\@elsarticleabstitle} %*%
\par\medskip\noindent\unskip\ignorespaces}
{\egroup}

When using the command \abstract directly, which underlies the
encironment "abstract", instead of the environment, this gets you

\global\setbox\absbox=\vbox\bgroup %%<- this \bgroup starts the
%% content of the \vbox
\hsize=\textwidth\def\baselinestretch{1}%
\noindent\unskip\textbf{\@elsarticleabstitle} %*%
\par\medskip\noindent\unskip\ignorespaces
{...} %% <- This is a brace-balanced group
%% An \egroup or closing brace ending the content of the \vbox is
%% missing.

, where the closing-brace or the \egroup-token denoting the end of the
content of the \vbox is missing.

Altenatively, instead of using "abstract" as an environment, you can do

\abstract{...}\egroup

or

\abstract{...}}%

, but those are not good practise.


Ulrich

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I wrote:

db wrote:

But now there is a new problem. The title appears on both
pp. 1 and 2, the first without, the second with that Abstract.
What do I do now?

In mini.tex you have both \maketitle and \begin{frontmatter}...\end{frontmatter}
while in elsarticle.cls the frontmatter-environment is defined as \newenvironment{frontmatter}{}{\maketitle}.

Thus you have \maketitle twice and get two title pages.

Probably commenting out \maketitle and keeping the
frontmatter-environment does the trick.

\documentclass[article,12pt,sort&compress]{elsarticle}
% Use those packages that you need, by uncommenting. \usepackage[text={16cm,25cm},centering]{geometry} \usepackage{amsmath,amssymb,amsfonts}%
\usepackage{amsthm}%
\usepackage{mathrsfs}%
\usepackage{xcolor}%
\usepackage{color,soul}%
\usepackage{textcomp}%
\usepackage{manyfoot}%
\usepackage{booktabs}%
\usepackage{lineno}%
\renewcommand{\baselinestretch}{1.5}
\newcommand{\del}{\ensuremath{\partial}}

\begin{document}
\begin{frontmatter}
\title{Test}
\author{}
%% The command "\end{frontmatter}" does \maketitle for you, thus
%% turn "\maketitle" into a comment here as otherwise you get
%% two pages with title:
%\maketitle
\journal{International journal of electrochemical science}
\biboptions{comma,square}
\begin{abstract}...\end{abstract}
\begin{keyword}bla bla\end{keyword}
\end{frontmatter}

Some text

\end{document}



Ulrich

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db wrote:

But now there is a new problem. The title appears on both
pp. 1 and 2, the first without, the second with that Abstract.
What do I do now?

In mini.tex you have both \maketitle and \begin{frontmatter}...\end{frontmatter}
while in elsarticle.cls the frontmatter-environment is defined as \newenvironment{frontmatter}{}{\maketitle}.

Thus you have \maketitle twice and get two title pages.

Probably commenting out \maketitle and keeping the
frontmatter-environment does the trick.

Ulrich

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