我正在使用 EngC 模板（剑桥大学出版社）撰写文本。正文看起来不错，但我遇到了一些与参考文献部分相关的错误。有什么建议可以解决吗？
\NeedsTeXFormat{LaTeX2e}[1996/06/01]
\documentclass{EngC}
\newcommand\cambridge{EngC}
\usepackage[usenames,dvipsnames]{xcolor}
\usepackage{booktabs}
\usepackage{graphicx}
\usepackage{makeidx}
\usepackage{pgfplots}
\usepackage{filecontents}
\pgfplotsset{compat=newest}
\usepgfplotslibrary{patchplots}
\usepgfplotslibrary{colormaps} %
%\usepgfplotslibrary{external}
%\tikzexternalize
\usepackage{rotating} %sideway table
\usepackage{float}
\usepackage{amssymb}
\usepackage[numbers,compress]{natbib}
\usepackage{amsmath}% if you are using this package,
% it must be loaded before amsthm.sty
\usepackage{amsthm}
\usepackage{subcaption}
\usepackage{txfonts}% times font (used to produce EngCguide.pdf)
% this package must be loaded after amsthm.sty
\usepackage{graphicx}
%\usepackage{IEEEtran.bst}
% \usepackage[rightcaption,raggedright]{sidecap}% for side captions
% \usepackage{framed} % for floatingboxes
\usepackage{soul}
%\usepackage{harvard}
\usepackage{tikz}
\usetikzlibrary{calc}
\usepackage{bm}
\usepackage{flexisym}
%\usepackage{flushend}
\usepackage{dsfont}
%\usepackage[landscape]{geometry}
\usetikzlibrary{positioning}
\usetikzlibrary{arrows}
\usetikzlibrary{chains,shapes.multipart}
\usetikzlibrary{shapes}
\usetikzlibrary{automata}
\setlength{\jot}{7pt}
\usepackage{multirow}
\usepackage{latexsym}
\usepackage[utf8]{inputenc}
\usetikzlibrary{shapes.geometric,arrows}
\tikzstyle{startstop}=[ellipse, minimum width=0.5cm, minimum height=0.4cm, text centered, draw=black, fill=white!30]
\tikzstyle{io}=[trapezium, trapezium left angle=70, trapezium right angle=110, minimum width=0.5cm, minimum height=0.2cm, text centered, draw=black, fill=white!30]
\tikzstyle{process}=[rectangle, minimum width=1.5cm, minimum height=0.75cm, text badly centered, draw=black, fill=white!30]
\tikzstyle{decision}=[diamond, minimum width=1cm, text width=0.5cm, minimum height=0.2cm, text centered, draw=black, fill=white!30]
\tikzstyle{arrow}=[thick,->,>=stealth]
%\usepackage[dvipsnames]{xcolor}
\definecolor {processblue}{cmyk}{0,0,0,7}
\definecolor{light-gray}{gray}{0.85}
\newtheorem{thm}{Theorem}
\newtheorem{lem}[thm]{Lemma}
\newtheorem{cor}{Corollary}[thm]
\usepackage[usenames,dvipsnames]{pstricks}
%\newcommand{\BigO}[1]{\ensuremath{\operatorname{O}\bigl(#1\bigr)}}
%\usepackage[dvipsnames]{xcolor}
\usepackage{pgfplots}
\usetikzlibrary{shapes.multipart}
\newcommand{\bc}{,\penalty0 \;}
\newcommand{\balpha}{{\boldsymbol \alpha}}
\newcommand{\bPhi}{{\boldsymbol \Phi}}
\newcommand{\bphi}{{\boldsymbol \phi}}
\newcommand{\bzero}{{\boldsymbol 0}}
%\newcommand*{\grayemph}[1]{%
%\tikz[baseline=(X.base)] \node[rectangle, fill=light-gray, rounded corners, inner sep=1.8mm] (X) {#1};%
%}
% if you are using either vancouver.bst or IEEEtran.bst and wish to remove
% square braces in the reference list, uncomment the line below
%\removesquarebraces
% \usepackage{amsmath}
\usepackage{rotating}
\usepackage{floatpag}
\rotfloatpagestyle{empty}
% indexes
% uncomment the relevant set of commands
% for a single index
% \usepackage{makeidx}
% \makeindex
% for multiple indexes using multind.sty
% \usepackage{multind}\ProvidesPackage{multind}
%\makeindex{authors}
%\makeindex{subject}
% for multiple indexes using index.sty
% \usepackage{index}
% \newindex{aut}{adx}{and}{Author index}
% \makeindex
% see chapter 3 for details
\theoremstyle{plain}% default
\newtheorem{theorem}{Theorem}[chapter]
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem*{corollary}{Corollary}
\usepackage{amsfonts}
\theoremstyle{definition}
\newtheorem{definition}[theorem]{Definition}
\newtheorem{condition}[theorem]{Condition}
\theoremstyle{remark}
\newtheorem{remark}{Remark}[chapter]
\newtheorem{notation}[remark]{Notation}
\newtheorem*{case}{Case}
\hyphenation{line-break line-breaks docu-ment triangle cambridge amsthdoc
cambridgemods baseline-skip author authors cambridgestyle en-vir-on-ment polar}
\setcounter{tocdepth}{2}% the toc normally lists sections;
% for the purposes of this document, this has been extended to subsections
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \includeonly{chap2}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\makeindex
\begin{document}
% \frontmatter
% \maketitle
%\tableofcontents
% \listoffigures
%\listoftables
% \listoffloatingboxes
% \listofcontributors
% \editedlistofcontributors
% \include{notation}
\mainmatter
\author[Doctor X and Doctor Y]
{Doctor X\footnotemark
and Doctor Y\footnotemark}
\chapterauthor{Doctor X\footnotemark\
and Doctor Y\footnotemark}
\chapter{Cool Science}
\label{intro}
\section{Section 1}
text text text
\section{Section 2}
text text text
\section{conclusions}
\bibliographystyle{IEEEtran} % uncomment for IEEE style
%\renewcommand{\refname}{Bibliography}% if you prefer this heading
\bibliography{percolation.bib}
\printindex
\end{document}
一些错误（使用 overleaf 编译）
Missing control sequence inserted.
<inserted text>
\inaccessible
l.185
Please don't say `\def cs{...}', say `\def\cs{...}'.
I've inserted an inaccessible control sequence so that your
definition will be completed without mixing me up too badly.
You can recover graciously from this error, if you're
careful; see exercise 27.2 in The TeXbook.
<argument> ...ournal \@empty \let \@bib@Z@journal
\@bibibid@ }\endgroup
l.1107 \end{document}
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.
Argument of \@bibibid@ has an extra }.
<inserted text>
\par
l.1107 \end{document}
I've run across a `}' that doesn't seem to match anything.
For example, `\def\a#1{...}' and `\a}' would produce
this error. If you simply proceed now, the `\par' that
I've just inserted will cause me to report a runaway
argument that might be the root of the problem. But if
your `}' was spurious, just type `2' and it will go away