我正在使用我所在大学的文档类 {urithesis}，我收到了一些似乎无法清除的奇怪错误 - 我希望有人可能有过类似问题的经验。
这是我的错误：
! LaTeX Error: There's no line here to end.
See the LaTeX manual or LaTeX Companion for explanation.
Type H <return> for immediate help.
...
l.33 \newchapter{chapter1}
Your command was ignored.
Type I <command> <return> to replace it with another command,
or <return> to continue without it.
相当标准的错误。我寻找常见的罪魁祸首（\、\newlines 等），但找不到原因。
这是我的主要论文文档：\documentclass{urithesis}
%% See http://www.ele.uri.edu/info/thesis/guide for details.
\usepackage{mathtools}
\usepackage{graphics}
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage[document]{ragged2e}
\usepackage[usenames,dvipsnames,svgnames,table]{xcolor}
%% This makes the pdf file contain active links for all references,
%% urls, the table of contents, etc., and creates a pdf menu.
\usepackage[pdfborder={0 0 0},plainpages=false,pdfpagelabels]{hyperref}
\begin{document}
%% This should be the title of this dissertation/thesis.
\title{GPS Spoofing Detection and using Multiple Antennas and Individual Space Vehicle Pseudoranges}
%% This should be the author of this dissertation/thesis.
\author{Go Bears}
%% This is the name of the .bib files that holds all of your references.
%% It can be a comma separated list if there is more than one file.
\reffile{references.bib}
%
%% These are the names of the .tex files which hold the
%% respective section of the thesis. If one of these sections
%% is not included, comment out the corresponding line.
\abstract{abstract}
%\acknowledgements{acknowledgements}
%\dedication{dedication}
%\preface{preface}
%
%% Include the chapters.
\newchapter{chapter1}
\newchapter{chapter2}
\newchapter{chapter3}
%\newchapter{chapter3}
%\newchapter{chapter4}
%% Include any appendices.
\newappendix{appendixA}
\newappendix{appendixB}
%% Include any references which should appear in the bibliography,
%% but are not explicitly referenced in the thesis.
%\nocite{re:toolan:as03}
\end{document}
再次强调，非常直接。第 1 章写道：
\chapter{Introduction}
This thesis is an extension to reference 1 where we conduct an analysis of the a study of the 2-Antenna problem, delve a little deeper into the mechanics of the simulations, and present some additional results.
无论我使用哪一章（有些章节比第 1 章更复杂），都会出现此错误。我怀疑文档类中有些内容要求换行，但我对 Tex 不是很熟悉。有什么想法吗？
谢谢你的帮助！
—DR
答案1
发现我的错误：
usepackage[document]{ragged2e}
是罪魁祸首。不确定为什么或如何 - 我会改天再研究一下，我没有浪费 2 个小时尝试编译，但删除声明会消除我的错误。
干杯!
并感谢@David Carlisle 的评论。