我已在我的文档中添加了代码onehalfspacing，但每次编译时都会收到以下错误消息：
缺少} 插入。}。
请参阅以下 MWE：
\documentclass[a4paper,12pt]{article}
\usepackage{color}
\usepackage{graphicx, epstopdf}
\usepackage{gensymb}
\usepackage{times}
\usepackage{adjustbox}
\usepackage{tabulary}
\usepackage{tabularx}
\usepackage{longtable}
\usepackage{booktabs,caption, makecell}
\usepackage{pdflscape,afterpage,caption}
\usepackage[british]{babel}
\usepackage[backend=bibtex, citestyle=ieee, bibstyle=ieee]{biblatex}
\usepackage[section]{placeins}%Allows you to permanently fix figures.
\addbibresource{library}
\usepackage{titleps}%fancy page borders?
\usepackage[left=2.8cm, right=2.8cm, top=3.5cm, bottom=3.5cm]{geometry}
\usepackage{caption}
\captionsetup[figure]{font=scriptsize,labelfont=scriptsize}
\captionsetup[table]{font=scriptsize,labelfont=scriptsize}
\usepackage{microtype}
\usepackage{setspace}
\begin{document}
\begin{onehalfspacing}
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\end{onehalfspacing}
\end{document}
非常感谢大家提出建议来解决这个问题，而无需对我的文档进行大规模的更改（这是一个很大的文档，我担心会有冲突的代码）。
提前致谢！
答案1
该setspace包定义
\onehalfspacing、声明，以及onehalfspace， 一个环境。
把前者当成后者使用是错误的。因此使用
\begin{onehalfspace}
...
\end{onehalfspace}
如果希望整个文档以“一倍半行距”排版，请输入
\onehalfspacing
前\begin{document}。