我正在使用这个模板 http://www.latextemplates.com/template/masters-doctoral-thesis
\documentclass[
11pt, % The default document font size, options: 10pt, 11pt, 12pt
english, % ngerman for German
singlespacing, % Single line spacing, alternatives: onehalfspacing or doublespacing
]{MastersDoctoralThesis} % The class file specifying the document structure
\usepackage{amsmath,tensor} % matrix, vector
\usepackage{cleveref}
\begin{document}
\begin{equation}\label{eq:a}
{{\rm{a}}_{r,c,l}} \in \{ 0,1, \ldots ,n\}
\end{equation}
Just ref \ref{eq:a}
Clever \Cref{eq:a}
\end{document}
出现错误
参考第 1 页上的“eq:a”在输入行 62 上未定义。
我的最小例子： https://www.overleaf.com/read/ktmqbhnvsdww
添加内容MastersDoctoralThesis.cls
\NeedsTeXFormat{LaTeX2e}[1996/12/01]
\newcommand{\classname}{MastersDoctoralThesis}
\ProvidesClass{\classname}[2016/11/22 v1.5 LaTeXTemplates.com]
\providecommand{\baseclass}{book}
\RequirePackage{etoolbox}
\RequirePackage{xparse}
\newbool{hyperrefsupport}
\booltrue{hyperrefsupport}
\newbool{headsepline}
\DeclareOption{nohyperref}{\boolfalse{hyperrefsupport}}
\DeclareOption*{\PassOptionsToClass{\CurrentOption}{\baseclass}}
\ProcessOptions\relax
\LoadClass{\baseclass}
%----------------------------------------------------------------------------------------
% REQUIRED PACKAGES
%----------------------------------------------------------------------------------------
\RequirePackage{babel} % Required for automatically changing names of document elements to languages besides english
\RequirePackage{scrbase} % Required for handling language-dependent names of sections/document elements
\RequirePackage{scrhack} % Loads fixes for various packages
\RequirePackage{setspace} % Required for changing line spacing
\RequirePackage{longtable} % Required for tables that span multiple pages (used in the symbols, abbreviations and physical constants pages)
\RequirePackage{siunitx} % Required for \SI commands
\RequirePackage{graphicx} % Required to include images
\graphicspath{{Figures/}{./}} % Specifies where to look for included images
\RequirePackage{booktabs} % Required for better table rules
\RequirePackage{caption} % Required for customising the captions
\captionsetup{justification=centerlast,font=small,labelfont=sc,margin=50pt}
%----------------------------------------------------------------------------------------
% MARGINS
%----------------------------------------------------------------------------------------
\RequirePackage{geometry}
\geometry{
headheight=27.2pt,
includehead,
includefoot
}
\raggedbottom
%----------------------------------------------------------------------------------------
\ifbool{hyperrefsupport}{% If the nohyperref class option has not been specified
\AtEndPreamble{\RequirePackage{hyperref}
\hypersetup{
pdfpagemode={UseOutlines},
bookmarksopen=true,
bookmarksopenlevel=0,
hypertexnames=false,
colorlinks=true,% Set to false to disable coloring links
citecolor=blue,% The color of citations
linkcolor=blue,% The color of references to document elements (sections, figures, etc)
urlcolor=blue,% The color of hyperlinks (URLs)
pdfstartview={FitV},
unicode,
breaklinks=true,
}
\pdfstringdefDisableCommands{% If there is an explicit linebreak in a section heading (or anything printed to the pdf-bookmarks), it is replaced by a space
\let\\\space%
}
}
}{%nothing
}
%----------------------------------------------------------------------------------------
\endinput
% lazyLizardTracer
答案1
您必须cleveref在之后加载hyperref- 因为您的类只hyperref在序言的末尾加载，所以您必须执行相同的技巧：
\documentclass[
11pt, % The default document font size, options: 10pt, 11pt, 12pt
english, % ngerman for German
singlespacing, % Single line spacing, alternatives: onehalfspacing or doublespacing
]{MastersDoctoralThesis} % The class file specifying the document structure
\usepackage{amsmath,tensor} % matrix, vector
\AtEndPreamble{\usepackage{cleveref}}
\begin{document}
\begin{equation}\label{eq:a}
{{\rm{a}}_{r,c,l}} \in \{ 0,1, \ldots ,n\}
\end{equation}
Just ref \ref{eq:a}
Clever \Cref{eq:a}
\end{document}
