article为了减少显示的方程式之间以及文本和方程式之间的空间，我在LyX标准文档中的 LaTeX 前言中添加了以下命令：
\usepackage[nodisplayskipstretch]{setspace}
\setstretch{1.5}
但我收到以下错误信息，
"LaTeX Error: Option clash for package setspace.
\setstretch
{1.5}
The package setspace has already been loaded with options:
[]
Description: There has now been an attempt to load it with options
[nodisplayskipstretch]
Adding the global options:
,nodisplayskipstretch
to your \documentclass declaration may fix this.
Try typing <return> to proceed."
这是什么意思，或者我该如何修复它？如何减少显示的方程式和文本之间的空间。
@ Bernard。谢谢 Bernard。这是供您复制问题的虚拟文件。PDF 快照也显示了该问题。我还制作了一些文本，以防行距出现任何问题。
%% LyX 2.1.1 created this file. For more info, see http://www.lyx.org/.
\documentclass[english,fleqn]{article}
\usepackage[T1]{fontenc}
\usepackage[latin9]{inputenc}
\usepackage{geometry}
\geometry{verbose,tmargin=1in,bmargin=1in,lmargin=1in,rmargin=1in}
\usepackage{color}
\usepackage{babel}
\usepackage{amsmath}
\usepackage{setspace}
\usepackage{esint}
\usepackage[authoryear]{natbib}
\setstretch{2}
\usepackage[unicode=true,pdfusetitle,
bookmarks=true,bookmarksnumbered=false,bookmarksopen=false,
breaklinks=false,pdfborder={0 0 0},backref=false,colorlinks=true]
{hyperref}
\hypersetup{
linkcolor=blue, urlcolor=blue, citecolor=blue}
\usepackage{breakurl}
\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
\usepackage{titlesec}
\titlespacing\section{0pt}{2pt plus 4pt minus 2pt}{0pt plus 2pt minus 2pt}
\titlespacing\subsection{0pt}{2pt plus 4pt minus 2pt}{0pt plus 2pt minus 2pt}
\titlespacing\subsubsection{0pt}{2pt plus 4pt minus 2pt}{0pt plus 2pt minus 2pt}
\PassOptionsToPackage{nodisplayskipstretch}{setspace}
\usepackage[nodisplayskipstretch]{setspace}
\setstretch{1.5}
\makeatother
\begin{document}
\title{Model Model Model }
\author{X Y }
\maketitle
\begin{abstract}
\begin{spacing}{2}
\noindent The role of Text TextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextText.
Text TextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextText.
Text TextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextText.
Text TextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextText.
Text TextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextText
\noindent {\bf Keywords:} Text, Text, Text
\noindent {\bf JEL Classification:} A123, E123 \end{spacing}
\end{abstract}
\section{\noindent \label{sec:Introduction}Introduction }
\begin{spacing}{2}
The Government is confident changes to Senate voting laws will get
support, and stop crossbenchers with miniscule votes getting into
Parliament. Follow our live blog for rolling updates.
The Government is confident changes to Senate voting laws will get
support, and stop crossbenchers with miniscule votes getting into
Parliament. Follow our live blog for rolling updates.
The Government is confident changes to Senate voting laws will get
support, and stop crossbenchers with miniscule votes getting into
Parliament. Follow our live blog for rolling updates.
\end{spacing}
\begin{spacing}{2}
\section{\noindent \label{sec:Model}Model}
\end{spacing}
\begin{spacing}{2}
The Government is confident changes to Senate voting laws will get
support, and stop crossbenchers with miniscule votes getting into
Parliament. Follow our live blog for rolling updates.
\end{spacing}
\begin{spacing}{2}
\subsection{\noindent hfjhfjkd}
\end{spacing}
\begin{spacing}{2}
The Government is confident changes to Senate voting laws will get
support, and stop crossbenchers with miniscule votes getting into
Parliament. Follow our live blog for rolling updates%
\footnote{\begin{spacing}{2}
The Government is confident changes to Senate voting laws will get
support, and stop crossbenchers with miniscule votes getting into
Parliament. Follow our live blog for rolling updates\end{spacing}
%
}.
\end{spacing}
\begin{spacing}{2}
\noindent \setlength{\mathindent}{0pt}
\[
MaxE_{t}\sum_{s=0}^{\infty}z^{s}\varrho_{t+s}\left[ln(Q_{t+s}-bQ_{t+s-1})-\psi\frac{X_{t+s}(l)^{1+\eta}}{1+\eta}\right]
\]
subject to the budget constraint
\[
\frac{Y_{t}(l)}{P_{t}}X_{t}(l)+R_{t+1}E_{t}-E_{t+1}-Q_{t}-T_{t}=0,
\]
and Text TextTextTextTextTextTextTextText.
\end{spacing}
\noindent Text TextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextText
\noindent
\begin{equation}
\frac{\delta A}{\delta B_{t}}=0\text{ \ensuremath{\Rightarrow}}L_{t}=\frac{\varrho_{t}}{C_{t}-bC_{t-1}}-\beta b\frac{\varrho_{t+1}}{C_{t+1}-bC_{t}},\label{eq:(1)}
\end{equation}
\noindent
\begin{equation}
\frac{\delta D}{\delta\mathbf{E}_{t+1}}=0\text{ \ensuremath{\Rightarrow}}L_{t}=\beta L_{t+1}R_{t+1}.\label{eq:2}
\end{equation}
Defining the d factor as
\begin{equation}
L_{t+1}=\frac{L_{t+1}}{L_{t}},\label{eq:3 discount factor}
\end{equation}
Equation (\ref{eq:2}) becomes
\begin{equation}
1=\beta L_{t+1}S_{t+1}.\label{eq:4}
\end{equation}
Text TextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextTextText.
\begin{spacing}{2}
\subsubsection*{\noindent The jfhdjhfjh}
\end{spacing}
\begin{spacing}{2}
\noindent Text TextTextTextTextTextTextTextTextTex:
\noindent
\begin{equation}
X_{t}=\left(\intop_{0}^{1}X_{t}(l)^{\frac{\epsilon_{w}-1}{\epsilon_{w}}}dl\right)^{\frac{\epsilon_{w}}{\epsilon_{w}-1}},\label{eq:LS}
\end{equation}
where $\epsilon_{w}$ is Text Text $\left(\epsilon_{w}>1\right)$.
Text TextTextTextTextTextTextTextTextTexText Tex,
\noindent
\[
\underset{X_{t}\left(l\right)}{Max}P_{t}^{P}\left(\intop_{0}^{1}X_{t}(l)^{\frac{\epsilon_{w}-1}{\epsilon_{w}}}dl\right)^{\frac{\epsilon_{w}}{\epsilon_{w}-1}}-\intop_{0}^{1}P_{t}(l)X_{t}(l)dl,
\]
where extTextTextTe The first order extTextTextTe is,
\noindent
\[
P_{t}^{P}\frac{\epsilon_{w}}{\epsilon_{w}-1}\left(\intop_{0}^{1}X_{t}(l)^{\frac{\epsilon_{w}-1}{\epsilon_{w}}}dl\right)^{\frac{\epsilon_{w}}{\epsilon_{w}-1}-1}\frac{\epsilon_{w}-1}{\epsilon_{w}}X_{t}(l)^{\frac{\epsilon_{w}-1}{\epsilon_{w}}-1}=P_{t}(l)
\]
\begin{equation}
\Rightarrow X_{t}(l)\left(\intop_{0}^{1}X_{t}(l)^{\frac{\epsilon_{w}-1}{\epsilon_{w}}}dl\right)^{-\frac{\epsilon_{w}}{\epsilon_{w}-1}}=\left(\frac{P_{t}(l)}{P_{t}^{P}}\right)^{-\epsilon_{w}}
\end{equation}
\noindent
\begin{equation}
\Rightarrow X_{t}(l)=\left(\frac{P_{t}(l)}{P_{t}^{P}}\right)^{-\epsilon_{w}}X_{t}.\label{eq:demand for X}
\end{equation}
\noindent Equation (\ref{eq:demand for X})TextTextText TextTextTextTextTextTextTextTextTexText
as,
\[
P_{t}^{P}Xt=\intop_{0}^{1}P_{t}(l)X_{t}(l)dl=\intop_{0}^{1}P_{t}(l)^{1-\epsilon_{w}}P_{t}^{\epsilon_{w}}X_{t}dl
\]
\[
\Rightarrow\left(P_{t}^{P}\right)^{1-\epsilon_{w}}=\intop_{0}^{1}P_{t}(l)^{1-\epsilon_{w}}dl
\]
\begin{equation}
\Rightarrow P_{t}^{P}=\left(\intop_{0}^{1}P_{t}(l)^{1-\epsilon_{w}}dl\right)^{\frac{1}{1-\epsilon_{w}}}.\label{eq:aggregate xyz index}
\end{equation}
\end{spacing}
\begin{spacing}{2}
\subsubsection*{\noindent fhgdfjkhjh hdfsjfhdjh }
\end{spacing}
\begin{spacing}{2}
\noindent Text TextTextTextTextTextTextTextTextTexText Tex
\noindent
\[
P_{t}^{P}=\left(\intop_{0}^{1}P_{t}(l)^{1-\epsilon_{w}}dl\right)^{\frac{1}{1-\epsilon_{w}}}.
\]
\noindent TextTextTextTextTextTextTextTextTexText\textcolor{black}{
\begin{equation}
g_{1,t}=\varrho_{t}\psi q_{t}^{\epsilon_{w}(1+\eta)}X_{t}^{1+\eta}+\beta\phi_{w}g_{1,t+1},\label{eq:f1}
\end{equation}
\begin{equation}
g_{2,t}=\varrho_{t}\psi q_{t}^{\epsilon_{w}(1+\eta)}X_{t}^{1+\eta}+\beta\phi_{w}g_{1,t+1},\label{eq:f2}
\end{equation}
}TextTextTextTextTextTextTextTextTexText
\appendix
\noindent {\Large{}Appendix}\renewcommand{\thetable}{A\arabic{table}}
\setcounter{table}{0}
\noindent \renewcommand{\thefigure}{A\arabic{figure}}
\setcounter{figure}{0}
\noindent \renewcommand{\theequation}{A\arabic{equation}}
\setcounter{equation}{0}
\end{spacing}
\begin{spacing}{2}
\section{\noindent \label{sec:Linearized-equations}Linearized equations }
\end{spacing}
\begin{spacing}{2}
\subsubsection*{\noindent gsdgdfg and fkjdskfjkdjs }
\end{spacing}
\begin{equation}
L_{t}=\frac{\varrho_{t}}{C_{t}-bC_{t-1}}-\beta b\frac{\varrho_{t+1}}{C_{t+1}-bC_{t}},\label{eq:A1}
\end{equation}
\begin{equation}
L_{t+1}+S_{t+1}=0\label{eq:A2}
\end{equation}
\begin{equation}
L_{t+1}=\lambda_{t+1}-\lambda_{t}\label{eq:A3}
\end{equation}
\subsubsection*{fghfghfg sector}
\begin{align}
\nu\hat{\nu_{t}} & =(1-\theta)\beta\left[\left(R_{k}-R\right)\Lambda_{t+1}+R_{k}R_{k,t+1}-RR_{t+1}\right]\label{eq:A4}
\end{align}
\end{document}
答案1
这意味着该setspace包已被加载两次，一次没有任何选项，一次带有您的选项。LaTeX 不喜欢这样。
您可以按照所说的进行操作： 在代码中nodisplayskipstretch 添加选项。\documentclass
或者，您可以将此行添加到序言中：
\PassOptionsToPackage{nodisplayskipstretch}{setspace}