我正在为我的博士论文实现一个自定义文档类。在其中，我明确定义了某些命令，例如\maketitle（更新命令）和\makeapproval。当我尝试编译我的主要论文文档时，我收到错误消息“未定义控制序列。\maketitle”或“未定义...\makeapproval”。但是，当我检查生成的 PDF 文件时，一切似乎都正常，这很奇怪。
发生了什么事？我该如何纠正这些无害的错误信息？
我在 Ubuntu 20.04.4 LTS 上运行。输出如下pdftex --version：
pdfTeX 3.14159265-2.6-1.40.20 (TeX Live 2019/Debian)
下面是我的论文 tex 文件的一个最小工作示例test.tex：
\documentclass[phd,bottom,sig]{usbthesis2}
\author{arturodonjuan}
\title{A Dissertation Title}
\begin{document}
\maketitle %
\makeapproval %
\end{document}
附带类文件usbthesis2.cls：
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{usbthesis2}[Bing Bong thesis class]
\newif\if@top
\newif\if@sig
\DeclareOption{master}{%
\newcommand{\@work}{Thesis}%
\newcommand{\@degree}{Master of Science}}
\DeclareOption{phd}{%
\newcommand{\@work}{Dissertation}%
\newcommand{\@degree}{Doctor of Philosophy}}
\DeclareOption{top}{\@toptrue}
\DeclareOption{bottom}{\@topfalse}
\DeclareOption{sig}{\@sigtrue}
\DeclareOption{nosig}{\@sigfalse}
\DeclareOption*{\PackageWarning{usbthesis2}{This package does not
recognize option: \CurrentOption}}
%\ExecuteOptions{phd,bottom}
\ProcessOptions\relax
\LoadClass[letterpaper,12pt,oneside]{report}
\RequirePackage{setspace}
\doublespacing
\RequirePackage{vmargin}
\setpapersize{USletter}
%\setmargins{1.5in}{1.25in}{5.5in}{8.125in}{0.125in}{0.75in}{0.125in}{0.325in}
%\setmargins{1.5in}{1.25in}{5.5in}{8.125in}{0.125in}{0.2in}{0.125in}{0.5in}
\if@top
\setmarginsrb{1.5in}{1in}{1.5in}{1in}{0.125in}{0.75in}{0.125in}{0.325in}
\else
\setmarginsrb{1.5in}{1in}{1.5in}{1in}{0.125in}{0.2in}{0.125in}{0.5in}
\fi
%\renewcommand{\LARGE}{\Large}
%\renewcommand{\huge}{\Large}
%\renewcommand{\Huge}{\LARGE}
%\renewcommand{\Huge}{\Large}
\newcommand{\ps@prelim}{%
\pagenumbering{roman}%
\renewcommand{\@oddhead}{}%
\renewcommand{\@evenhead}{}%
\renewcommand{\@evenfoot}{\hfil\textrm{\thepage}\hfil}%
\renewcommand{\@oddfoot}{\@evenfoot}}
\newcommand{\ps@thesis}{%
\pagenumbering{arabic}%
\if@top
\renewcommand{\@oddfoot}{}%
\renewcommand{\@evenfoot}{}%
\renewcommand{\@evenhead}{\hskip-0.25in \textrm{\thepage}\hfil}%
\renewcommand{\@oddhead}{\hfil \textrm{\thepage} \hskip-0.25in}%
\renewcommand{\ps@plain}{%
\renewcommand{\@oddfoot}{}%
\renewcommand{\@evenfoot}{}%
\renewcommand{\@evenhead}{\hskip-0.25in \textrm{\thepage}\hfil}%
\renewcommand{\@oddhead}{\hfil\textrm{\thepage} \hskip-0.25in}}
\fi
}
\renewcommand{\month}[1]{\newcommand{\@month}{#1}}
\renewcommand{\year}[1]{\newcommand{\@year}{#1}}
\newcommand{\program}[1]{%
\newcommand{\@program}{#1}}
\newcommand{\director}[2]{%
\newcommand{\@directorname}{#1}%
\newcommand{\@directorposition}{#2}}
\newcommand{\chairman}[2]{%
\newcommand{\@chairmanname}{#1}%
\newcommand{\@chairmanposition}{#2}}
\newcommand{\fstmember}[2]{%
\newcommand{\@fstmembername}{#1}%
\newcommand{\@fstmemberposition}{#2}}
\newcommand{\sndmember}[2]{%
\newcommand{\@sndmembername}{#1}%
\newcommand{\@sndmemberposition}{#2}}
\newcommand{\trdmember}[2]{%
\newcommand{\@trdmembername}{#1}%
\newcommand{\@trdmemberposition}{#2}}
\newcommand{\outmember}[3]{%
\newcommand{\@outmembername}{#1}%
\newcommand{\@outmemberposition}{#2}%
\newcommand{\@outmemberschool}{#3}}
\newcommand{\dean}[1]{%
\newcommand{\@dean}{#1}}
\renewcommand{\maketitle}{\begin{titlepage}%
\if@top
\setmarginsrb{1.5in}{1in}{1.5in}{1in}{0.125in}{0.2in}{0.125in}{0.5in}
\fi
\renewcommand{\footnotesize}{\small} %\let\footnoterule\relax
\setcounter{page}{0}%
\begin{center}%
\setlength{\baselineskip}{29pt}%
% \vspace*{0.2in}%
{\LARGE\textbf{\@title}}\\%
\vfill
\setlength{\baselineskip}{14.5pt}
% \large
% [0.2in]
A \@work\ Presented\\%
% [0.2in] \vfill A \@work, Presented\\%
[0.2in] by\\%
[0.25in] \textbf{\large \@author} \\%
[0.25in] to\\%
[0.2in] The Graduate School\\%
[0.2in] in Partial Fulfillment of the Requirements\\
% [0.2in] Requirements\\%
[0.2in] for the Degree of\\%
[0.5in] \textbf{\large \@degree}\\%
[0.2in] in\\%
[0.2in] \textbf{\large \@program}\\%
[0.5in] Bing Bong University\\%
[0.2in] \@month\ \@year%
\end{center}%
\par\null%
\setcounter{footnote}{0}%
\let\thanks\relax%
\let\maketitle\relax%
\end{titlepage}}
\newcommand{\makeapproval}{%
\if@top
\setmarginsrb{1.5in}{1in}{1.5in}{1in}{0.125in}{0.2in}{0.125in}{0.5in}
\fi
\pagestyle{prelim}
\setcounter{page}{2}%
\begin{center}%
\setlength{\baselineskip}{14.5pt}%
\textbf{Bing Bong University}\\%
[0.1in]{The Graduate School} \\%
[0.35in] \textbf{\large \@author}%
\end{center}%
\vspace{0.25in}%
{\setlength{\baselineskip}{14.5pt}%
We, the \MakeLowercase{\@work}\ committee for the above candidate for the
\@degree\ degree, hereby recommend acceptance of this \MakeLowercase{\@work}.\par}
\begin{center}%
\setlength{\baselineskip}{14.5pt}%
\rule[-0.55in]{3in}{\if@sig 0.01in \else 0.00in \fi}\\
[0.03in]\textbf{\@directorname{} -- \@work{} Advisor\\
\@directorposition}\\%
\rule[-0.55in]{3in}{\if@sig 0.01in \else 0.00in \fi}\\
[0.03in]\textbf{\@chairmanname{} -- Chairperson of Defense\\
\@chairmanposition}\\%
\rule[-0.55in]{3in}{\if@sig 0.01in \else 0.00in \fi}\\
[0.03in]\textbf{\@fstmembername\\
\@fstmemberposition}\\%
\rule[-0.55in]{3in}{\if@sig 0.01in \else 0.00in \fi}\\
[0.03in]\textbf{\@outmembername\\
\@outmemberposition\\
\@outmemberschool}
\end{center}%
\vspace{0.2in}%
\begin{center}%
This \MakeLowercase{\@work}\ is accepted by the Graduate School.
\parbox{\if@sig 3in \else 2.5in \fi}%
{\centering%\raggedright%
\baselineskip 14.5pt%
\rule[-0.55in]{3in}{\if@sig 0.01in \else 0.00in \fi}\\[0.03in]
\if@sig \else \@dean\\ \fi
Dean of the Graduate School\\}%
\end{center}\clearpage}
\renewenvironment{abstract}{%
\if@top
\setmarginsrb{1.5in}{1in}{1.5in}{1in}{0.125in}{0.2in}{0.125in}{0.5in}
\fi
\begin{center}%
\setlength{\baselineskip}{14.5pt}%
\vspace*{0.1in}%
{\large Abstract of the \@work}\\%
[0.2in]{\textbf{\Large{\@title}}}\\%
% [0.2in]{\Huge{\@title}}\\%
% {\bf \sc \Huge {\@title\\}}%
\vspace{0.2in} by \\%
% [0.2in]by\\%
[0.2in]\textbf{\large \@author}\\%
[0.3in]\textbf{\large \@degree}\\%
[0.2in]in\\%
[0.2in]\textbf{\large \@program}\\%
[0.2in]{\large Bing Bong University} \\
[0.2in]{\large \@year}\\%
[0.2in]\if@sig {\large \@directorname} \fi %for extra abstract copy
\end{center}%
\par%
\vspace{0.4in}%
\begin{quote}}%
{\end{quote}%
%\par\vfil\null
\clearpage}
\newenvironment{dedication}{%
\if@top
\setmarginsrb{1.5in}{1in}{1.5in}{1in}{0.125in}{0.2in}{0.125in}{0.5in}
\fi
\thispagestyle{empty}%
\pagestyle{empty}
\vspace*{\fill}%
\begin{center}}%
{\end{center}\vspace*{\fill}\clearpage}
\newenvironment{acknowledgements}{%
\if@top
\setmarginsrb{1.5in}{1in}{1.5in}{1in}{0.125in}{0.2in}{0.125in}{0.5in}
\fi
\clearpage%
\phantomsection
\addcontentsline{toc}{chapter}{\protect\numberline{}{Acknowledgements}}
\chapter*{Acknowledgements}%
\thispagestyle{empty}%
\pagestyle{empty}}%
{\clearpage}
\renewenvironment{thebibliography}[1]
{\chapter*{\bibname
\@mkboth{\MakeUppercase\bibname}{\MakeUppercase\bibname}}%
\list{\@biblabel{\@arabic\c@enumiv}}%
{\settowidth\labelwidth{\@biblabel{#1}}%
\leftmargin\labelwidth
\advance\leftmargin\labelsep
\@openbib@code
\usecounter{enumiv}%
\let\p@enumiv\@empty
\renewcommand\theenumiv{\@arabic\c@enumiv}}%
\sloppy
\clubpenalty4000
\@clubpenalty \clubpenalty
\widowpenalty4000%
\sfcode`\.\@m}
{\def\@noitemerr
{\@latex@warning{Empty `thebibliography' environment}}%
\endlist
\addcontentsline{toc}{chapter}{\protect\numberline{}{\bibname
\@mkboth{\MakeUppercase\bibname}{\MakeUppercase\bibname}}}}
\renewcommand\listoffigures{%
\if@top
\setmarginsrb{1.5in}{1in}{1.5in}{1in}{0.125in}{0.2in}{0.125in}{0.5in}
\fi
\if@twocolumn
\@restonecoltrue\onecolumn
\else
\@restonecolfalse
\fi
\clearpage
\phantomsection
\addcontentsline{toc}{chapter}{\protect\numberline{}{\listfigurename
\@mkboth{\MakeUppercase\listfigurename}{\MakeUppercase\listfigurename}}}%
\chapter*{\listfigurename
\@mkboth{\MakeUppercase\listfigurename}%
{\MakeUppercase\listfigurename}}%
\@starttoc{lof}%
\if@restonecol\twocolumn\fi
}
\renewcommand\listoftables{%
\if@top
\setmarginsrb{1.5in}{1in}{1.5in}{1in}{0.125in}{0.2in}{0.125in}{0.5in}
\fi
\if@twocolumn
\@restonecoltrue\onecolumn
\else
\@restonecolfalse
\fi
\clearpage
\phantomsection
\addcontentsline{toc}{chapter}{\protect\numberline{}{\listtablename
\@mkboth{\MakeUppercase\listtablename}{\MakeUppercase\listtablename}}}%
\chapter*{\listtablename
\@mkboth{%
\MakeUppercase\listtablename}{\MakeUppercase\listtablename}}%
\@starttoc{lot}%
\if@restonecol\twocolumn\fi
}
答案1
对于此特定文档类，您需要使用几个命令来提供排版标题页和批准页所需的信息。请确保已将以下内容添加到序言中：
\author{Author's Name}
\title{A Dissertation Title}
\program{Some program}
\month{June}
\year{2022}
\director{Someone}{Position1}
\chairman{Somebody}{Position2}
\fstmember{Someone else}{Position3}
\outmember{Member1}{Member2}{Member3}
还有一些其他字段对于这些命令来说不需要，但在其他地方可能需要：
\sndmember{Someone}{Position4}
\trdmember{Someone}{Position5}
\dean{Dean's Name}