我是这个社区的新人。当我要编译这个时，%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% !TEX TS-program = XeLaTeX
\documentclass[10pt]{article}
\usepackage{polyglossia}
\setmainlanguage[numerals=Devanagari]{bengali}
\setotherlanguage{english}
\newfontfamily\englishfont[Scale=MatchLowercase]{Linux Biolinum O}
\newfontfamily\bengalifont[Script=Bengali]{Akaash}
\begin{document}
\tableofcontents
\section{ভূমিকা}
এটি একটি ইংরেজি লেখা ছোট অধ্যায় যে বাঙ্গালী এ \textenglish{Google Translate} দ্বারা অনুবাদ করা হয়েছে. এটা খুব স্পষ্ট নয় যদি সঠিক অনুবাদ বা না কিন্তু ক্রিয়াটি ফন্ট দেখাতে যথেষ্ট হওয়া উচিত.
\end{document}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
显示以下消息。几个月前还没有发生这种情况。
This is XeTeX, Version 3.14159265-2.6-0.99996 (MiKTeX 2.9)
entering extended mode
(D:/Latex/ben.tex
LaTeX2e <2016/03/31> patch level 3
Babel <3.9r> and hyphenation patterns for 75 language(s) loaded.
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\base\article.cls"
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\base\size10.clo"))
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\polyglossia\polyglossia.sty"
(D:/Latex\etoolbox.sty) (D:/Latex\makecmds.sty)
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\xkeyval\xkeyval.sty"
("C:\Program Files (x86)\MiKTeX 2.9\tex\generic\xkeyval\xkeyval.tex"
("C:\Program Files (x86)\MiKTeX 2.9\tex\generic\xkeyval\xkvutils.tex"
("C:\Program Files (x86)\MiKTeX 2.9\tex\generic\xkeyval\keyval.tex"))))
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\fontspec\fontspec.sty"
(D:/Latex\expl3.sty
(C:\Users\kausani\AppData\Roaming\MiKTeX\2.9\tex\latex\l3kernel\l3names.sty
*****************************************************************
**
** Package l3names is obsolete and has been removed!
**
** Its functionality is now only provided as part of the expl3 package.
**
** After showing you an error message you can hit <return> we will continue
** for now by loading expl3 for you. However, the old packages will be
** removed entirely at the end of 2017.
**
** Therefore, please replace '\usepackage{l3names}'
** with '\usepackage{expl3}' in your documents as soon as possible.
**
*******************************************************************
! Package l3names Error: This package is obsolete --- use 'expl3' instead.
See the l3names package documentation for explanation.
Type H <return> for immediate help.
...
l.45 \@ehc
?
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
我该怎么办？
答案1
"C:\Program Files (x86)\MiKTeX 2.9\tex\latex\fontspec\fontspec.sty"
(D:/Latex\expl3.sty
您正在从标准 miktex 位置提取大部分软件包，但您有一个旧的本地副本，expl3您D:/Latex\expl3.sty想要删除（或移动）该副本并让 latexexpl3从标准 miktex 输入树中找到的当前副本。
（您还将获得etoolbox一些其他包，d:\latex如果它们来自标准输入路径，以便您获得当前版本，那就更好了）