\documentclass[14pt, ja4]{jsarticle}
\bibliographystyle{junsrt2}
%\usepackage{tcclearerr}
%--^
%\setlength{\oddsidemargin}{-11pt}
%\setlength{\textwidth}{41zw}
%\setlength{\topmargin}{-10mm}
\setlength{\textheight}{40\baselineskip}
\title{レポート}
\author{}
\date{\today}
\setcounter{tocdepth}{3}
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\rhead{}
\rhead{\thepage{}}
\cfoot{}
\renewcommand{\headrulewidth}{0pt}
\usepackage[top=2cm, bottom=2cm, left=2cm, right=2cm, includefoot]{geometry}
\usepackage[dvipdfmx]{graphicx}
\usepackage[dvipdfmx, hidelinks]{hyperref}
\usepackage[numbers, sort]{natbib}
\usepackage{url}
\usepackage[at]{easylist}
\usepackage{listliketab}
\usepackage[english, japanese]{babel}
\usepackage{amsthm, amsmath}
\newtheoremstyle{mystyle}{}{}{\normalfont}{}{\bfseries}{}{\newline}{}
\theoremstyle{mystyle}
\newtheorem{thm}{定理}[section]
\newtheorem*{thm*}{定理}
\newtheorem{prf}{証明}[section]
\newtheorem*{prf*}{証明}
\usepackage{bm}
\setlength\intextsep{0pt}
\setlength\textfloatsep{0pt}
\makeatletter
\renewcommand{\theequation}
{\arabic{section}.\arabic{equation}}
\@addtoreset{equation}{section}
\makeatother
\usepackage{wrapfloat}
%--^\arabic{chapter}-
\begin{document}
\maketitle
%\tableofcontents% 目次の表示
%\newpage
% 本文
%\setcounter{section}{1}
\section{LHCとHERA}
%\setcounter{subsection}{3}
\subsection{固定標的}
%\setcounter{equation}{42}
\begin{align}
\root(s)
\end{align}
%\clearpage
%\bibliography{ref}
\end{document}
上のやつをコンパイルしたら
次のようなエラーが出ました
! Argument of \next@ has an extra }.
<inserted text>
\par
l.59 \end{align}
?
解決策ありませんか