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LaTeX 错误：使用 hyperref 包时，包 inputenc 的选项发生冲突

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LaTeX 错误：使用 hyperref 包时，包 inputenc 的选项发生冲突

我的LaTeX项目中有一个类文件。当我包含该包时，\usepackage{hyperref}出现以下错误：

LaTeX Error: Option clash for package inputenc.

cls 文件：

% http://ctan.mirrors.hoobly.com/macros/latex/doc/clsguide.pdf
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{SCmastersthesis}[2021/11/30 SC Master''s Thesis class]

\LoadClass[12pt, a4paper, openright]{report}

% Usefull packages
\usepackage[arabic, french, english]{babel}
\usepackage[cp1256,cp1256,cp1256,cp1256,utf8x]{inputenc}
\usepackage[hidelinks]{hyperref}
\usepackage{float}
\usepackage{subfigure}
\usepackage{amsmath}
\usepackage{lscape}
\usepackage{amssymb}
\usepackage{import}
\usepackage{enumerate}


\RequirePackage{microtype}   % Improves typography
\RequirePackage[T1]{fontenc}
\RequirePackage{lmodern}
\RequirePackage[pdftex]{graphicx}
\RequirePackage{color}
\RequirePackage{geometry}
\RequirePackage{tabto}       % Tabulation
\RequirePackage{anyfontsize} % size of fonts
% For all sorts of hyperlinks in the PDF output.

% Commands for title, readers, authors, dates, specialities,...
\RequirePackage{etoolbox}
\newcommand{\subtitle}[1]{\def\@subtitle{#1}}
\newcommand{\secondauthor}[1]{\def\@secondauthor{#1}}
\newcommand{\thirdauthor}[1]{\def\@thirdauthor{#1}}
\newcommand{\supervisor}[1]{\def\@supervisor{#1}}
\newcommand{\secondsupervisor}[1]{\def\@secondsupervisor{#1}}
\newcommand{\thirdsupervisor}[1]{\def\@thirdsupervisor{#1}}
\newcommand{\degreetitle}[1]{\def\@degreetitle{#1}}
\newcommand{\options}[1]{\def\@myoptions{#1}}
\newcommand{\readerone}[1]{\def\@readerone{#1}}
\newcommand{\readertwo}[1]{\def\@readertwo{#1}}
\newcommand{\readerthree}[1]{\def\@readerthree{#1}}
\newcommand{\readerfour}[1]{\def\@readerfour{#1}}
\newcommand{\readerfive}[1]{\def\@readerfive{#1}}
\newcommand{\years}[1]{\def\@years{#1}}

% Lenghts
\newlength{\tabAuthor}
\newlength{\tabSupervisor}
\newlength{\tabReader}

% Title creation
\renewcommand{\maketitle}{
  \begin{titlepage}
    \thispagestyle{empty}
    \newgeometry{top=0cm,bottom=0cm,left=3cm,right=2.5cm}
    
    % background
    \noindent \hspace{-3cm} 
    \includegraphics{_frontbanner_SC-master-thesis_3.pdf}\\
    \vspace*{-\textheight}
    
    % Font
    \color{white} \fontfamily{phv} \selectfont
    
    % Define lengths
    \setlength{\tabAuthor}{
        \ifdef{\@secondauthor}{1.7cm}{1.6cm}
    }
    \setlength{\tabSupervisor}{
        \ifdef{\@secondsupervisor}{2.55cm}{2.45cm}
    }
    \setlength{\tabReader}{
        \ifdef{\@readertwo}{1.9cm}{1.8cm}
    }    
    
    \vspace*{9cm}
    
    % Title and subtitle
    \noindent
    \begin{minipage}[t][10cm][c]{1\textwidth}
    \raggedright
    %\vspace*{2cm}
    {
      \fontsize{26}{36}\selectfont \textbf{\@title}
      
      \vspace*{12pt}
      
      \ifdef{\@subtitle}{\fontsize{20}{30} \selectfont \@subtitle}{$ $} \\
    } 
    \end{minipage}
    
    
    % Metadata
    \vspace*{4cm}
    \noindent \hspace{1.7cm}
    \begin{minipage}[l]{.85\textwidth}
      % authors
      \ifdef{\@secondauthor}{Auteurs:}{Auteur:}{\bfseries
        \tabto{\tabAuthor}\@author
        \ifdef{\@secondauthor}{, \@secondauthor}{}
        \ifdef{\@thirdauthor}{, \@thirdauthor}{}}
      \\
      % supervisors
      \ifdef{\@secondsupervisor}{Promoteurs:}{Promoteur:}{\bfseries
        \tabto{\tabSupervisor}\@supervisor
        \ifdef{\@secondsupervisor}{, \@secondsupervisor}{}\ifdef{\@thirdsupervisor}{, \@thirdsupervisor}{}}
      \\
      % readers
      \ifdef{\@readertwo}{Lecteurs:}{Lecteur:}{\bfseries
        \tabto{\tabReader}\@readerone
        \ifdef{\@readertwo}{, \@readertwo}{}\ifdef{\@readerthree}{, \@readerthree}{}\ifdef{\@readerfour}{, \@readerfour}{}\ifdef{\@readerfive}{, \@readerfive}{}}
      \\
      % academic year
      Année académique \@years
      \\
      % degree title
      \@degreetitle      
    \end{minipage}
  \end{titlepage}
}

% Front cover page
\newcommand{\frontpage}
{
  \begin{titlepage}
  \end{titlepage}
}

% Back cover page
\newcommand{\backcoverpage}
{
  \newpage
  \thispagestyle{empty}
  \newgeometry{top=0cm,bottom=0cm,left=0cm,right=0cm}
  \includegraphics{_backbanner_SC-master-thesis.pdf}

}

\endinput

答案1

给定一个测试文件

\documentclass{SCmastersthesis}

\begin{document}

a
\end{document}

你得到

! LaTeX Error: Option clash for package inputenc.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.10 \usepackage
                [hidelinks]{hyperref}
?

但hyperref这里不涉及，实际上消息中的换行符显示[hidelinks]{hyperref}甚至还没有被读取。

错误在上一行

\usepackage[cp1256,cp1256,cp1256,cp1256,utf8x]{inputenc}

它不会做任何有用的事情，只需删除即可。如果没有此行，示例将运行而不会出错。

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