段落在 \institute 完成之前结束。——无法修复

Question

我在编译以下代码时遇到此错误。此外，\maketitle 不起作用。

失控的论点？{ \at \textsuperscript {1,3}计算科学系！段落在 \institute 完成之前结束。

平均能量损失

%\documentclass[smallextended]{svjour3}
\documentclass[twocolumn]{svjour3}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{comment}
\usepackage[center]{caption}
\usepackage{subcaption}
\usepackage{float}
\usepackage[backend=biber,style=authoryear]{biblatex}
\usepackage{csquotes}
\usepackage[section]{placeins}
%Important
%\addbibresource{swa_ref.bib}
\usepackage[linesnumbered,lined,boxed,commentsnumbered]{algorithm2e}
\usepackage{amsmath}
\usepackage{graphicx}
\graphicspath{{./images/}}
%Table packages
\usepackage{tabularx}
\usepackage{booktabs}
\usepackage[figuresright]{rotating}
\setlength{\rotFPtop}{0pt plus 1fil}
\usepackage{makecell}
\renewcommand{\theadfont}{\bfseries}

% Insert the name of "your journal" with
\journalname{None}

\title{Some Title}

\author{Author1\textsuperscript{1}\and \textsuperscript{\Letter}~Author2\textsuperscript{2}\and Author3\textsuperscript{3}
        }
\institute{ \at
             \textsuperscript{1,3}Department of Computational Science
          \and
           \at
           \textsuperscript{\Letter}~Corresponding author\\
              \textsuperscript{2}Department of Computer Science \& Engineering
              \email{[email protected]}
           }
%\date{Drafted:\today}
% The correct dates will be entered by the editor
\begin{document}
\maketitle
\begin{abstract}
To be written later.
\keywords{keywords \and keywords \and keywords \and keywords \and keywords \and keywords}
\end{abstract}

%\input{introduction}
%\input{implementation}
%\input{evaluation}
%\input{casestudy}
%\input{conclusion}
% Authors must disclose all relationships or interests that
% could have direct or potential influence or impart bias on
% the work:
%
\section*{Conflict of interest}
 The authors declare that they have no conflict of interest.
%\printbibliography
 \end{document} 

Answer 1

为了使\maketitle工作能够添加\usepackage[misc]{ifsym}到您的 MWE 中以供标志使用\Letter。

% !TeX TS-program = pdflatex

%\documentclass[smallextended]{svjour3}
\documentclass[twocolumn]{svjour3}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{comment}
\usepackage[center]{caption}
\usepackage{subcaption}
\usepackage{float}
\usepackage[backend=biber,style=authoryear]{biblatex}
\usepackage{csquotes}
\usepackage[section]{placeins}
%Important
%\addbibresource{swa_ref.bib}
\usepackage[linesnumbered,lined,boxed,commentsnumbered]{algorithm2e}
\usepackage{amsmath}
\usepackage{graphicx}
\graphicspath{{./images/}}
%Table packages
\usepackage{tabularx}
\usepackage{booktabs}
\usepackage[figuresright]{rotating}
\setlength{\rotFPtop}{0pt plus 1fil}
\usepackage{makecell}
\renewcommand{\theadfont}{\bfseries}

\usepackage[misc]{ifsym}% added <<<<<<<<<<<<<<<<

% Insert the name of "your journal" with
\journalname{None}

\title{Some Title}

\author{Author1\textsuperscript{1}\and \textsuperscript{\Letter}~Author2\textsuperscript{2}\and Author3\textsuperscript{3}
}

\institute{\at
    \textsuperscript{1,3}Department of Computational Science
    \and
    \at \textsuperscript{\Letter}~Corresponding author\\
    \textsuperscript{2}Department of Computer Science \& Engineering
    \email{[email protected]} 
}

\date{Drafted:\today}

\begin{document}
    \maketitle
    \begin{abstract}
        To be written later.
        \keywords{keywords \and keywords \and keywords \and keywords \and keywords \and keywords}
    \end{abstract}
    
    %\input{introduction}
    %\input{implementation}
    %\input{evaluation}
    %\input{casestudy}
    %\input{conclusion}
    % Authors must disclose all relationships or interests that
    % could have direct or potential influence or impart bias on
    % the work:
    %
    \section*{Conflict of interest}
    The authors declare that they have no conflict of interest.
    %\printbibliography
\end{document}