我正在使用以下模板在“Gruyter 数学会议录系列会议录卷中发布”，但是它无法编译。
\documentclass[11pt,notitlepage,twoside]{report}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
%\leftmargin -2cm
\textwidth 16cm \oddsidemargin -0.01cm \evensidemargin -0.01cm
\addtolength{\textheight}{2cm} \addtolength{\topmargin}{-0.5cm}
\usepackage{latexsym}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{tikz}
\usepackage{color}
\usepackage{xcolor}
\usepackage{pgflibraryarrows}
\usepackage{tikz}
%%%\usetikzlibrary{patterns}
%%%\usetikzlibrary{decorations.pathmorphing}
%%%\usetikzlibrary{decorations.fractals}
%%%\usetikzlibrary{shapes.symbols}
%\usepackage{setspace}
%\usepackage{showkeys}
\newcommand{\pa }{\partial}
\renewcommand{\a }{\alpha }
\renewcommand{\b }{\beta }
\renewcommand{\d}{\delta }
\newcommand{\media}{\mkern12mu\hbox{\vrule height4pt depth-3.2pt width5pt} \mkern-16mu\int}
\newcommand{\laplconf}{L_{g}}
\newcommand{\qi}{q_i}
\newcommand{\yi}{y_i}
\newcommand{\vi}{v_i}
\newcommand{\wi}{w_i}
\newcommand{\ui}{u_i}
\newcommand{\D }{\Delta }
\newcommand{\Di }{\mathcal{D}^{1,2}(\R^n_+) }
\newcommand{\e }{\varepsilon }
\newcommand{\g }{\gamma}
\renewcommand{\i }{\iota}
\newcommand{\graffe}[1]{\parent \{ \}{#1}} % racchiude il testo tra graffe adeg.
\newcommand{\foral }{\forall\, }
\newcommand{\G }{\Gamma }
\renewcommand{\l }{\lambda }
\renewcommand{\L }{\Lambda }
\newcommand{\m }{\mu }
\newcommand{\n }{\nabla }
\newcommand{\var }{\varphi }
\newcommand{\rh }{\rho }
\newcommand{\s }{\sigma }
\newcommand{\Sig }{\Sigma}
\renewcommand{\t }{\tau }
\renewcommand{\th }{\theta }
\renewcommand{\o }{\omega }
\renewcommand{\O }{\Omega }
\newcommand{\z }{\zeta }
\newcommand{\ov}{\overline}
\newcommand{\wtilde }{\widetilde}
\newcommand{\wk}{\rightharpoonup}
\newcommand{\be}{\begin{equation}}
\newcommand{\ee}{\end{equation}}
\newcommand{\hf}{\hfill $\diamondsuit$}%\medskip}
\newenvironment{pf}{\noindent{\bf Proof.}\enspace}{%\rule{2mm}{2mm}
\hfill Q.E.D. \medskip}
\newenvironment{pfn}[1]{\noindent{\bf Proof of {#1}\enspace}}{%\rule{2mm}{2mm}
\hfill Q.E.D. \medskip}
\newcommand{\R}{\mathbb{R}}
\newcommand{\norm}[1]{\Vert {#1} \Vert}
\newcommand{\salt}{\noalign{\vskip .2truecm}}
\newcommand{\parent}[3]{\left #1 {#3} \right #2} % racchiude il testo tra il
% primo e secondo simbolo\newcommand{\tonde}[1]{\parent (){#1}} % racchiude il testo tra tonde adeguate
\newcommand{\quadre}[1]{\parent []{#1}} % racchiude il testo tra quadre adeguate
\newcommand{\barre}[1]{\parent \Vert \Vert {#1}} % racchiude il testo tra barre adeguate
\newcommand{\Rs}{\mbox{ \scriptsize I\hspace{-.15em}R}}
\newcommand{\Z}{\mathbb{Z}}
\newcommand{\Zs}{\mbox{\scriptsize Z\hspace{-.25em}Z}}
\newcommand{\N}{\mathbb{N}}
\newcommand{\abs}[1]{\left\vert#1\right\vert}
\newcommand{\set}[1]{\left\{#1\right\}}
\newcommand{\eps}{\varepsilon}
\newcommand{\To}{\longrightarrow}
\newcommand{\BX}{\mathbf{B}(X)}
\newcommand{\A}{\mathcal{A}}
\newtheorem{Theorem}{Theorem}[section]
\newtheorem{Proposition}{Proposition}[section]
\newtheorem{Lemma}{Lemma}[section]
\newtheorem{Remark}{Remark}[section]
\newtheorem{Proof}{Proof}[section]
\newtheorem{Definition}{Definition}[section]
\newtheorem{Corollary}{Corollary}[section]
\newtheorem{Example}{Example}[section]
\numberwithin{equation}{section}
\DeclareFontFamily{T1}{cmr}{\hyphenchar\font=-1}
%\renewcommand{\baselinestretch}{1.2}
% MATH -------------------------------------------------------------------
\makeindex
\usepackage{latexsym}
\usepackage{makeidx}
\usepackage{tikz}
%%%\usetikzlibrary[patterns]
\begin{document}
\chapter{Title}
\begin{remark}
If there exists
\end{remark}
\begin{thebibliography}{99}
\bibitem{999} A., Spectral theory
and applications of linear operators and block operator
matrices, Springer-Verlag, New-York, (2015).
\end{thebibliography}
\printindex
\end{document}
答案1
错误信息非常清楚。它说LaTeX Error: Environment remark undefined。
问题在于您正在定义一个Remark环境（大写 R），并使用一个remark环境。
您可以将您的定义更改remark为：
\newtheorem{remark}{Remark}
或者使用Remark大写 R 的环境：
\begin{Remark}
Remarked stuff
\end{Remark}