当我尝试在运行 TexLive2015 的 Mac OS/X 的 texpad 上编译（XeLaTeX）我的论文时收到这些错误消息，这是我得到的：
./Dissertation.tex:94: Incomplete \iffalse; all text was ignored after line 290.
<inserted text>
\fi
l.94 \begin{document}
./Dissertation.tex:94: TeX capacity exceeded, sorry [input stack size=5000].
\blx@dopreamblecmds ->\do \blx@dopreamblecmds
\do \blx@onlypreamble
l.94 \begin{document}
No pages of output.
我以前从未遇到过这个问题。在我添加一个脚注之前，它一直运行良好。其中一个问题显然与我的参考书目有关，事实上，上面几行我可以看到：
Package biblatex Warning: File 'Dissertation.bbl' is wrong format version - expected 2.5.
...
Package biblatex Warning: The following entry could not be found
(biblatex) in the database:
(biblatex) type X <return> to quit.
(biblatex) Please verify the spelling and rerun
(biblatex) LaTeX afterwards.
在 dissertation.bbl 文件的末尾我发现了这个错误：
\endentry
\endsortlist
\missing{type X <return> to quit.}\GenericError { }{LaTeX Error: Something's wrong--perhaps a missing \item}{See the LaTeX manual or LaTeX Companion for explanation.}{Try typing <return> to proceed.\MessageBreak If that doesn't work}
\missing{\subsubsectionblock \def subsubsection{subsubsection}\par \@tempskipa \beforesubsubsecskip \relax \let \GenericError { }{LaTeX Error: Something's wrong--perhaps a missing \item}{See the LaTeX manual or LaTeX Companion for explanation.}{Try typing <return> to proceed.\MessageBreak If that doesn't work}
\missing{The marquis Federico Cavriani's views}
\missing{type X <return> to quit.}\let \reserved@d =*\def \par}
\endrefsection
\endinput
但我很难理解为什么 \iffalse 和“Tex 容量超出”错误会同时出现。为了遵守研究生院的格式规则，我使用了大学的模板。我尝试将此模板改编为人文学科的论文，并添加了必要的软件包。
\documentclass[12pt,letterpaper,oneside,final]{memoir}
\usepackage[no-math]{fontspec}
\usepackage{xltxtra}
\setmainfont[Mapping=tex-text,Ligatures={Common}]{Garamond Premier Pro}
\usepackage{xkeyval}
\usepackage{polyglossia}
\usepackage{graphicx}
\graphicspath{ {images/} }
\usepackage[rightcaption]{sidecap}
\usepackage{float}
\usepackage{url}
\usepackage{type1cm}
\usepackage{lettrine}
\setdefaultlanguage[variant=american]{english}
\setotherlanguage[variant=ancient,numerals=arabic]{greek}
\setotherlanguage[spelling=new]{german}
\setotherlanguages{latin,french,italian,spanish}
\usepackage{csquotes}
\usepackage{etoolbox,keyval,ifthen}
\usepackage{csquotes}
\usepackage[backend=biber]{biblatex-chicago}
%\DeclareAutoCiteCommand{plain}{\cite}{\cites}
\DeclareAutoCiteCommand{plain}{\textcite}{\textcites}
\DeclareAutoCiteCommand{inline}{\textcite}{\textcites}
\DeclareAutoCiteCommand{footnote}[l]{\footcite}{\footcites}
%\DeclareAutoCiteCommand{footnote}[f]{\smartcite}{\smartcites}
\bibliography{masterbib}
\usepackage[final]{hyperref}%?%hyperfootnotes=false
\hypersetup{bookmarks=false, % show bookmarks bar?
unicode=true, % non-Latin characters in Acrobat’s bookmarks
pdftoolbar=true, % show Acrobat’s toolbar?
pdfmenubar=true, % show Acrobat’s menu?
pdffitwindow=false, % window fit to page when opened
pdfstartview={FitH}, % fits the width of the page to the window
pdftitle={},
pdfauthor={XXXXXXXXXXXXXXXXXX}, % author
pdfsubject={Ph.D. Dissertation}, % subject of the document
pdfcreator={XXXXXXXXXXXX}, % creator of the document
pdfproducer={XXXXXXXXXXXXX}, % producer of the document
pdfkeywords={XXXXXXXXXXXXX}, % list of keywords
pdfnewwindow=true, % links in new window
colorlinks=true, % false: boxed links; true: colored links
linkcolor=black, % color of internal links
citecolor=black, % color of links to bibliography
filecolor=black, % color of file links
urlcolor=black % color of external links
}
\usepackage{microtype}
\usepackage{xecolor}
\definergbcolor{blue}{0000FF}
\definergbcolor{red}{FF0000} %\textxecolor{colorname}{text}
\XeTeXdashbreakstate=1
\usepackage{indentfirst}
\usepackage{outline}
\usepackage{verbatim}
\usepackage{enumerate}
\usepackage{longtable}
\usepackage{ccicons}
\usepackage{bookmark}
\usepackage{etoolbox}
%!%%%%%%%%%%%%%%%%%%%%%for non-italicized headings%%%%%
% http://tex.stackexchange.com/questions/32655/remove-italic-from-memoir-headings-pagestyle
\makeevenhead{headings}{\leftmark}{}{}
\makeoddhead{headings}{\rightmark}{}{}
\makeevenfoot{headings}{}{\thepage}{}
\makeoddfoot{headings}{}{\thepage}{}
%!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%!%%%%%%%%%%%%%%%%%%%%%for margins, l=1.5; rest=1.0, maybe add 0.1in%%%%%
\setstocksize{11in}{8.5in}
\settrimmedsize{11.0in}{8.5in}{*} %\settrimmedsize{ height }{ width }{ ratio }
\settypeblocksize{7.75in}{5.8in}{*} %\settypeblocksize{ height }{ width }{ ratio } %note: 7.25h gives margins of 1.5 on top/bottom w/ ubratio of 1
\setlrmargins{1.5in}{*}{*} %\setlrmargins{ spine }{ edge }{ ratio } %spine = left, edge = right; only answer one or two of these values
%\setlrmarginsandblock{1.5in}{1.0in}{*} %\setlrmarginsandblock{ spine }{ edge }{ ratio } %
%\setulmargins{*}{*}{*} %\setulmargins{ upper }{ lower }{ ratio }
%\setulmarginsandblock{0.5in}{*}{*} %\setulmarginsandblock{ upper }{ lower }{ ratio }
%\setheadfoot{*}{*} %\setheadfoot{ headheight }{ footskip }
%\setheaderspaces{1.0in}{*}{*} %\setheaderspaces{ headdrop }{ headsep }{ ratio }
%\checkandfixthelayout[lines]
\flushbottom
%!%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\apptocmd{\sloppy}{\hbadness 10000\relax}{}{}
\setsecnumdepth{subparagraph}
\makeatletter
\renewcommand\@makefntext{\hspace*{2em}\@thefnmark. }
\newenvironment*{singlespcquote}
{\quote\SingleSpacing}
{\endquote}
\SetBlockThreshold{0}
\SetBlockEnvironment{singlespcquote}
\SetCiteCommand{\parencite} %default is \cite
\begin{document}
%\fussy
%\hyphenpenalty=5000 %1000 default=?
%\tolerance=1000 %1000 %200= default
%\setlength{\emergencystretch}{3em}
%\midsloppy
\fussy
\vbadness=10000 % badness above which bad vboxes are shown. (Default = 10000?)
\frontmatter
\hyphenation{}
\DoubleSpacing
\begin{center}