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找不到文件时总是需要手动输入文件名（例如未找到“epigraph.sty”）

tag-icon • tag-icon packages auxiliary-files epigraphs
找不到文件时总是需要手动输入文件名（例如未找到“epigraph.sty”）

我在章节开头使用“epigraph”包来添加题词。每次我尝试编译时，它总是说

LaTeX 错误：未找到文件“epigraph.sty”。

然后它提示我输入文件名。我输入了“epigraph.sty”，成功了！

我尝试使用

$ texhash

命令位于我的 tex 文件所在的目录中。它说我的目录不可写。所以似乎它总是会引发这个错误，我每次都必须手动输入文件名……这当然不太理想。

答案1

我可以重现如下所述的效果

\documentclass{article}

\usepackage{epigraph​}

\begin{document}

\end{document}

产生终端输出：

This is pdfTeX, Version 3.14159265-2.6-1.40.17 (TeX Live 2016) (preloaded format=pdflatex)
 restricted \write18 enabled.
entering extended mode
(./ww775.tex
LaTeX2e <2017-05-01>
Babel <3.9r> and hyphenation patterns for 83 language(s) loaded.
(/home/davidc/texmf/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/home/davidc/texmf/tex/latex/base/size10.clo))

! LaTeX Error: File `epigraph​.sty' not found.

Type X to quit or <RETURN> to proceed,
or enter new name. (Default extension: sty)

Enter file name:

如果你输入epigraph.sty它完成为

This is pdfTeX, Version 3.14159265-2.6-1.40.17 (TeX Live 2016) (preloaded format=pdflatex)
 restricted \write18 enabled.
entering extended mode
(./ww775.tex
LaTeX2e <2017-05-01>
Babel <3.9r> and hyphenation patterns for 83 language(s) loaded.
(/home/davidc/texmf/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/home/davidc/texmf/tex/latex/base/size10.clo))

! LaTeX Error: File `epigraph​.sty' not found.

Type X to quit or <RETURN> to proceed,
or enter new name. (Default extension: sty)

Enter file name: epigraph.sty
(/usr/local/texlive/2016/texmf-dist/tex/latex/epigraph/epigraph.sty

LaTeX Warning: You have requested package `epigraph​',
               but the package provides `epigraph'.

) (./ww775.aux) (./ww775.aux) )
No pages of output.

这里的原因是文件中的控制字符：

线

\usepackage{epigraph​}

是

  U+005c REVERSE SOLIDUS     &bsol; \backslash \textbackslash
  U+0075 LATIN SMALL LETTER U     u
  U+0073 LATIN SMALL LETTER S     s
  U+0065 LATIN SMALL LETTER E     e
  U+0070 LATIN SMALL LETTER P     p
  U+0061 LATIN SMALL LETTER A     a
  U+0063 LATIN SMALL LETTER C     c
  U+006b LATIN SMALL LETTER K     k
  U+0061 LATIN SMALL LETTER A     a
  U+0067 LATIN SMALL LETTER G     g
  U+0065 LATIN SMALL LETTER E     e
  U+007b LEFT CURLY BRACKET     &lcub; &lbrace; \lbrace
  U+0065 LATIN SMALL LETTER E     e
  U+0070 LATIN SMALL LETTER P     p
  U+0069 LATIN SMALL LETTER I     i
  U+0067 LATIN SMALL LETTER G     g
  U+0072 LATIN SMALL LETTER R     r
  U+0061 LATIN SMALL LETTER A     a
  U+0070 LATIN SMALL LETTER P     p
  U+0068 LATIN SMALL LETTER H     h
  U+200b ZERO WIDTH SPACE     &ZeroWidthSpace; &NegativeVeryThinSpace; &NegativeThinSpace; &NegativeMediumSpace; &NegativeThickSpace;
  U+007d RIGHT CURLY BRACKET     &rcub; &rbrace; \rbrace

带有虚假的 U+200B 零宽度字符，这样的字符无法看到，但会导致文件名不匹配，因此需要您输入“干净”的版本。只需删除该行并仅使用可见的 ascii 字符重新输入即可产生

\documentclass{article}

\usepackage{epigraph}

\begin{document}

\end{document}

运行没有错误

$ pdflatex ww775
This is pdfTeX, Version 3.14159265-2.6-1.40.17 (TeX Live 2016) (preloaded format=pdflatex)
 restricted \write18 enabled.
entering extended mode
(./ww775.tex
LaTeX2e <2017-05-01>
Babel <3.9r> and hyphenation patterns for 83 language(s) loaded.
(/home/davidc/texmf/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/home/davidc/texmf/tex/latex/base/size10.clo))
(/usr/local/texlive/2016/texmf-dist/tex/latex/epigraph/epigraph.sty)
(./ww775.aux) (./ww775.aux) )
No pages of output.
Transcript written on ww775.log.

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