以下是代码：
\documentclass[11pt]{article}
\usepackage{graphicx}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{natbib}
\usepackage{footnote}
\usepackage{caption}
\usepackage{url}
\usepackage{booktabs}
\usepackage{lscape}
\usepackage[
pdfauthor={derajan},
pdftitle={How to do this},
pdfstartview=XYZ,
bookmarks=true,
colorlinks=true,
linkcolor=blue,
urlcolor=blue,
citecolor=blue,
pdftex,
bookmarks=true,
linktocpage=true, % makes the page number as hyperlink in table of content
hyperindex=true
]{hyperref}
\linespread {1.3}
\setlength{\parskip}{1em}
\renewcommand{\baselinestretch}{1.3}
\marginparwidth 0pt
\oddsidemargin 0pt
\evensidemargin 0pt
\marginparsep 0pt
\topmargin 0pt
\textwidth 6.5in
\textheight 8.5 in
\begin{document}
\setcounter{NAT@ctr}{0}
\bibliographystyle{chicago}
\bibliography{references}
\end{document}
当我运行上述代码时，出现以下错误：
line 263 ! Missing $ inserted.<inserted text>$ \newblock Insper Working Papers wpe_
line 265 ! Missing $ inserted.<inserted text>$
line 265 ! Missing } inserted.<inserted text>}
line 265 ! Extra }, or forgotten \endgroup.\par ...m \@noitemerr {\@@par }\fi \else {\@@par }\fi
这是日志文件：
This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015) (preloaded format=pdflatex 2015.5.24) 24 SEP 2017 14:04
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**coskun.tex
(./coskun.tex
LaTeX2e <2015/01/01>
Babel <3.9l> and hyphenation patterns for 79 languages loaded.
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Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
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File: size11.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
)
\c@part=\count79
\c@section=\count80
\c@subsection=\count81
\c@subsubsection=\count82
\c@paragraph=\count83
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\bibindent=\dimen102
)
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Package: keyval 2014/10/28 v1.15 key=value parser (DPC)
\KV@toks@=\toks14
)
(/usr/local/texlive/2015/texmf-dist/tex/latex/graphics/graphics.sty
Package: graphics 2014/10/28 v1.0p Standard LaTeX Graphics (DPC,SPQR)
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Package: trig 1999/03/16 v1.09 sin cos tan (DPC)
)
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File: graphics.cfg 2010/04/23 v1.9 graphics configuration of TeX Live
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Package graphics Info: Driver file: pdftex.def on input line 94.
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Package: amsmath 2013/01/14 v2.14 AMS math features
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For additional information on amsmath, use the `?' option.
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Package: amstext 2000/06/29 v2.01
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Package: amsbsy 1999/11/29 v1.2d
\pmbraise@=\dimen106
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Package: amsopn 1999/12/14 v2.01 operator names
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\DOTSCASE@=\count92
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LaTeX Info: Redefining \[ on input line 2665.
LaTeX Info: Redefining \] on input line 2666.
)
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Package: natbib 2010/09/13 8.31b (PWD, AO)
\bibhang=\skip46
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LaTeX Info: Redefining \cite on input line 694.
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Package: footnote 1997/01/28 1.13 Save footnotes around boxes
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Package: caption3 2013/05/02 v1.6-88 caption3 kernel (AR)
Package caption3 Info: TeX engine: e-TeX on input line 57.
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(/usr/local/texlive/2015/texmf-dist/tex/latex/url/url.sty
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File: hyperref.cfg 2002/06/06 v1.2 hyperref configuration of TeXLive
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Package hyperref Info: Option `bookmarks' set `true' on input line 4319.
Package hyperref Info: Option `colorlinks' set `true' on input line 4319.
Package hyperref Info: Option `bookmarks' set `true' on input line 4319.
Package hyperref Info: Option `linktocpage' set `true' on input line 4319.
Package hyperref Info: Option `hyperindex' set `true' on input line 4319.
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Package hyperref Info: Hyper index ON on input line 4451.
Package hyperref Info: Plain pages OFF on input line 4458.
Package hyperref Info: Backreferencing OFF on input line 4463.
Package hyperref Info: Implicit mode ON; LaTeX internals redefined.
Package hyperref Info: Bookmarks ON on input line 4688.
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LaTeX Info: Redefining \url on input line 5041.
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(./coskun.aux)
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LaTeX Font Info: ... okay on input line 40.
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LaTeX Font Info: ... okay on input line 40.
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Package caption Info: Begin \AtBeginDocument code.
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Package hyperref Info: Link coloring ON on input line 40.
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LaTeX Info: Redefining \ref on input line 40.
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(./coskun.out) (./coskun.out)
\@outlinefile=\write3
\openout3 = `coskun.out'.
(./coskun.bbl [1
{/usr/local/texlive/2015/texmf-var/fonts/map/pdftex/updmap/pdftex.map}] [2]
! Missing $ inserted.
<inserted text>
$
l.263 \newblock Insper Working Papers wpe_
160, Insper Working Paper, Insper ...
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.
! Missing $ inserted.
<inserted text>
$
l.265
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.
! Missing } inserted.
<inserted text>
}
l.265
I've inserted something that you may have forgotten.
(See the <inserted text> above.)
With luck, this will get me unwedged. But if you
really didn't forget anything, try typing `2' now; then
my insertion and my current dilemma will both disappear.
! Extra }, or forgotten \endgroup.
\par ...m \@noitemerr {\@@par }\fi \else {\@@par }
\fi
l.265
I've deleted a group-closing symbol because it seems to be
spurious, as in `$x}$'. But perhaps the } is legitimate and
you forgot something else, as in `\hbox{$x}'. In such cases
the way to recover is to insert both the forgotten and the
deleted material, e.g., by typing `I$}'.
[3])
Package atveryend Info: Empty hook `BeforeClearDocument' on input line 45.
[4]
Package atveryend Info: Empty hook `AfterLastShipout' on input line 45.
(./coskun.aux)
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Package rerunfilecheck Info: File `coskun.out' has not changed.
(rerunfilecheck) Checksum: D41D8CD98F00B204E9800998ECF8427E;0.
Package atveryend Info: Empty hook `AtVeryVeryEnd' on input line 45.
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Here is how much of TeX's memory you used:
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111818 string characters out of 6134842
200683 words of memory out of 5000000
10867 multiletter control sequences out of 15000+600000
10054 words of font info for 30 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
36i,5n,38p,242b,500s stack positions out of 5000i,500n,10000p,200000b,80000s
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答案1
发布的代码没有显示问题，但是您的日志显示
\newblock Insper Working Papers wpe_
160, Insper Working Paper, Insper ...
因此，文件中的一个参考书目条目.bib包含文本 wpe_160 ，但_仅是数学模式，因此条目应该wpe\_160假设您想要一个文字_