当我使用 tcolorbox 在部件的内容行中获取灰色背景时，出现 toc 错误。尽管出现错误，但 pdf 仍可正确创建。
Undefined control sequence. \contentsline {part}{I\hspace {1em}Part1}{3} Undefined control sequence. \contentsline {part}{II\hspace {1em}Part2}{7}
\documentclass[12pt,a4paper,openright,twoside]{book}
\usepackage[english]{babel}
\usepackage{tcolorbox}
\makeatletter
\renewcommand*\l@part[2]{%
\ifnum \c@tocdepth >-2\relax
\addpenalty{-\@highpenalty}%
\addvspace{2.25em \@plus\p@}%
\setlength\@tempdima{3em}%
\begingroup
\parindent \z@ \rightskip \@pnumwidth
\parfillskip -\@pnumwidth
\begin{tcolorbox}[colback=black!10, right=0.5ex, left=0cm, arc=0pt,outer arc=0pt, boxrule=0mm, width=1.01\textwidth]
{\leavevmode
\large \bfseries \vbox{\sffamily\bfseries#1}%
\hb@[email protected]{\hss #2}
}
\end{tcolorbox}
\vspace*{.5ex}
\nobreak
\global\@nobreaktrue
\everypar{\global\@nobreakfalse\everypar{}}%
\endgroup
\fi}
\makeatother
\begin{document}
\tableofcontents
\part{Part1}
\chapter{Chapter1}
\part{Part2}
\chapter{Chapter2}
\end{document}
我的日志的文件列表是。
*File List*
book.cls 2014/09/29 v1.4h Standard LaTeX document class
bk12.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
babel.sty 2014/09/25 3.9l The Babel package
bblopts.cfg 2006/07/31 v1.0 MiKTeX 'babel' configuration
english.ldf 2012/08/20 v3.3p English support from the babel system
tcolorbox.sty 2015/07/16 version 3.70 text color boxes
pgf.sty 2013/12/18 v3.0.0 (rcs-revision 1.14)
pgfrcs.sty 2013/12/20 v3.0.0 (rcs-revision 1.28)
everyshi.sty 2001/05/15 v3.00 EveryShipout Package (MS)
pgfrcs.code.tex
pgfcore.sty 2010/04/11 v3.0.0 (rcs-revision 1.7)
graphicx.sty 2014/10/28 v1.0g Enhanced LaTeX Graphics (DPC,SPQR)
keyval.sty 2014/10/28 v1.15 key=value parser (DPC)
graphics.sty 2014/10/28 v1.0p Standard LaTeX Graphics (DPC,SPQR)
trig.sty 1999/03/16 v1.09 sin cos tan (DPC)
graphics.cfg 2007/01/18 v1.5 graphics configuration of teTeX/TeXLive
pdftex.def 2011/05/27 v0.06d Graphics/color for pdfTeX
infwarerr.sty 2010/04/08 v1.3 Providing info/warning/error messages (HO)
ltxcmds.sty 2011/11/09 v1.22 LaTeX kernel commands for general use (HO)
pgfsys.sty 2013/11/30 v3.0.0 (rcs-revision 1.47)
pgfsys.code.tex
pgfsyssoftpath.code.tex 2013/09/09 (rcs-revision 1.9)
pgfsysprotocol.code.tex 2006/10/16 (rcs-revision 1.4)
xcolor.sty 2007/01/21 v2.11 LaTeX color extensions (UK)
color.cfg 2007/01/18 v1.5 color configuration of teTeX/TeXLive
pgfcore.code.tex
pgfcomp-version-0-65.sty 2007/07/03 v3.0.0 (rcs-revision 1.7)
pgfcomp-version-1-18.sty 2007/07/23 v3.0.0 (rcs-revision 1.1)
verbatim.sty 2014/10/28 v1.5q LaTeX2e package for verbatim enhancements
environ.sty 2014/05/04 v0.3 A new way to define environments
trimspaces.sty 2009/09/17 v1.1 Trim spaces around a token list
etoolbox.sty 2015/05/04 v2.2 e-TeX tools for LaTeX (JAW)
supp-pdf.mkii
***********
答案1
这不是问题的答案（Thomas F. Sturm 已经指出 3.70 中有一个错误tcolorbox），但我想建议newtcolorbox对此\l@part命令使用单独的命令——这样可以更容易地进行更改：
\documentclass[12pt,a4paper,openright,twoside]{book}
\usepackage[english]{babel}
\usepackage[most]{tcolorbox}
\newtcolorbox{lpartbgbox}{%
colback=yellow, right=0.5ex, left=0cm, arc=0pt,outer arc=0pt, boxrule=0mm, width=1.01\textwidth
}%
\makeatletter
\renewcommand*\l@part[2]{%
\ifnum \c@tocdepth >-2\relax
\addpenalty{-\@highpenalty}%
\addvspace{2.25em \@plus\p@}%
\setlength\@tempdima{3em}%
\begingroup
\parindent \z@ \rightskip \@pnumwidth
\parfillskip -\@pnumwidth
\begin{lpartbgbox}
{\leavevmode
\large \bfseries \vbox{\sffamily\bfseries#1}%
\hb@[email protected]{\hss #2}
}
\end{lpartbgbox}
\vspace*{.5ex}
\nobreak
\global\@nobreaktrue
\everypar{\global\@nobreakfalse\everypar{}}%
\endgroup
\fi}
\makeatother
\begin{document}
\tableofcontents
\part{Part1}
\chapter{Chapter1}
\part{Part2}
\chapter{Chapter2}
\end{document}