我正在使用\documentclass[a4paper,fleqn]{cas-dc}，并且我的文章中有阿拉伯语文本，当我尝试使用 XeLatex 执行时，它会返回此错误并在 pdf 输出中显示奇怪的字符。
/usr/local/texlive/2017/texmf-dist/tex/latex/breakurl/breakurl.sty:311: Undefined control sequence.
<argument> \headerps@out
{/burl@stx null def /BU.S { /burl@stx null def } de...
l.311 }
这是可以重现错误的最小代码：
\documentclass[a4paper,fleqn]{cas-dc}
\usepackage[numbers,sort&compress]{natbib}
\usepackage{lineno,hyperref}
\usepackage{amsmath}
\usepackage[ruled,vlined]{algorithm2e}
\usepackage{dirtytalk}
\usepackage{tikz}
\usepackage{verbatim}
\usepackage{arabtex}
\usepackage{fontspec}
\usepackage{bidi}
\newfontfamily\arabicfont{Al Nile}
\usetikzlibrary{calc,trees,positioning,arrows,chains,shapes.geometric,%
decorations.pathreplacing,decorations.pathmorphing,shapes,%
matrix,shapes.symbols}
\tikzset{
>=stealth',
punktchain/.style={
rectangle,
rounded corners,
% fill=black!10,
draw=black, very thick,
text width=10em,
minimum height=3em,
text centered,
on chain},
line/.style={draw, thick, <-},
element/.style={
tape,
top color=white,
bottom color=blue!50!black!60!,
minimum width=8em,
draw=blue!40!black!90, very thick,
text width=10em,
minimum height=3.5em,
text centered,
on chain},
every join/.style={->, thick,shorten >=1pt},
decoration={brace},
tuborg/.style={decorate},
tubnode/.style={midway, right=2pt},
}
%%%Author definitions
\def\tsc#1{\csdef{#1}{\textsc{\lowercase{#1}}\xspace}}
\tsc{WGM}
\tsc{QE}
\tsc{EP}
\tsc{PMS}
\tsc{BEC}
\tsc{DE}
%%%
\begin{document}
\let\ref\Cref
\let\eqref\Cref
\let\autoref\Cref
\let\WriteBookmarks\relax
\def\floatpagepagefraction{1}
\def\textpagefraction{.001}
\shorttitle{CV Radhakrishnan et~al. / Engineering Science and Technology, an International Journal}
\shortauthors{CV Radhakrishnan et~al.}
\footmarks{\url{https://doi.org/xx.xxxx/j.jestch.20xx.xx.xxx}\\
2215-0986/\begingroup\tiny{©}\endgroup~20xx Karabuk University. Publishing services by Elsevier B.V.\\
This is an open access article under the CC BY-NC-ND license (\url{http://creativecommons.org/licenses/by-nc-nd/4.0/}).
}
\bookmark[named = FirstPage]{This is a specimen $a_b$ title} % Title bookmark used in the pdf
%**************** If the title is short, stay on the first line use [mode = short_title] otherwise ******************
%***************************************** use [mode = title] below ***************************************
\title [mode = short_title]{a title}
\author[1,3]{CV Radhakrishnan}[type=editor,
auid=000,bioid=1,
prefix=Sir,
%role=Researcher,
%orcid=0000-0001-7511-2910
]
\cormark[1]
%\fnmark[1] % URL related footnote marking
\ead{[email protected]}
\ead[url]{www.cvr.cc, [email protected]} % Author URL
\credit{Conceptualization of this study, Methodology, Software}
\address[1]{Elsevier B.V., Radarweg 29, 1043 NX Amsterdam, The Netherlands}
\author[2,3]{Han Theh Thanh}[style=chinese]
\author[2,3]{CV Rajagopal}[
%role=Co-ordinator,
suffix=Jr,
]
%\fnmark[2] % URL related footnote marking
\ead{[email protected]}
%\ead[URL]{www.sayahna.org} % Author URL
\credit{Data curation, Writing - Original draft preparation}
\address[2]{Sayahna Foundation, Jagathy, Trivandrum 695014, India}
\author
[1,3]
{Rishi T.} % If the author's name hits "Check for updates" button, use \\ at the break point of his/her name like {\\Rishi T.} or {First Middle\\ Lastname}
% NOTE: Compile first without \\ then the proper separation again afterwards !!! (Not doing so, results unwanted footnote and Credit authorship contribution at the very end with \credit command if used.)
\cormark[2]
%\fnmark[1,3] % URL related footnote marking
\ead{[email protected]}
\address[3]{STM Document Engineering Pvt Ltd., Mepukada,
Malayinkil, Trivandrum 695571, India}
\author[4]{Salih Baris Ozturk}
\ead{[email protected]}
\address[4]{Istanbul Technical University, Department of Electrical Engineering,
Maslak, Istanbul 34469, Turkey}
\credit{Modification for the final layout}
\cortext[cor1]{Corresponding author.}
\cortext[cor2]{Principal corresponding author.}
\nonumnote{Peer review under responsibility of Karabuk University.}
\begin{abstract}
This template helps you to create a properly formatted \LaTeX\ manuscript.
\noindent\texttt{\textbackslash begin{abstract}} \dots
\texttt{\textbackslash end{abstract}} and
\verb+\begin{keyword}+ \verb+...+ \verb+\end{keyword}+
which
contain the abstract and keywords respectively. Each keyword shall be separated by a \verb+\sep+ command. \\
\noindent \lipsum[1]
\end{abstract}
\received {xx Month 20xx}
\revised {xx Month 20xx}
\accepted {xx Month 20xx}
\online {xx Month 20xx}
\begin{keywords}
keyword1 \sep
keyword2 \sep
keyword3 \sep
\WGM \sep
\BEC
\end{keywords}
\maketitle
\section{Introduction}
bla bla bla
\bibliographystyle{elsarticle-num}
\bibliography{mybibfile}
\end{document}