我正在尝试 Claudio Beccari 编写的新 (2020) graphpaper 包，但对于最简单的文档却出现了错误：
\documentclass{graphpaper}
\begin{document}
\bilinear
\end{document}
这个错误是由同一作者的 euclideangeometry 包引起的。这个错误似乎无关紧要，因为无论如何都会根据各种命令生成方格纸，但它仍然有点烦人。以下是 PDFLaTeX 的输出：
*****
***** PDFLaTeX output:
***** cd "/home/stefano"
***** pdflatex -interaction=nonstopmode graphpaper-test.tex
*****
This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021) (preloaded format=pdflatex)
restricted \write18 enabled.
entering extended mode
(./graphpaper-test.tex
LaTeX2e <2020-10-01> patch level 4
L3 programming layer <2021-05-07>
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/graphpaper/graphpaper.cl
s
Document Class: graphpaper 2020-10-10 1.0 A LaTeX class to generate several typ
es of graph papers
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/xkeyval/xkeyval.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/generic/xkeyval/xkeyval.tex
(/home/stefano/local/texlive/2021/texmf-dist/tex/generic/xkeyval/xkvutils.tex
(/home/stefano/local/texlive/2021/texmf-dist/tex/generic/xkeyval/keyval.tex))))
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/base/article.cls
Document Class: article 2020/04/10 v1.4m Standard LaTeX document class
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/base/size11.clo))
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/geometry/geometry.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/generic/iftex/ifvtex.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/generic/iftex/iftex.sty)))
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/euclideangeometry/euclid
eangeometry.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/curve2e/curve2e.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/graphics/graphicx.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/graphics/graphics.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/graphics/trig.sty)
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/graphics-cfg/graphics.cf
g)
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/graphics-def/pdftex.def)
)) (/home/stefano/local/texlive/2021/texmf-dist/tex/latex/graphics/color.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/graphics-cfg/color.cfg))
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/pict2e/pict2e.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/pict2e/pict2e.cfg)
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/pict2e/p2e-pdftex.def))
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/l3packages/xparse/xparse
.sty (/home/stefano/local/texlive/2021/texmf-dist/tex/latex/l3kernel/expl3.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/l3backend/l3backend-pdft
ex.def))
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/l3packages/xparse/xparse
-2020-10-01.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/l3packages/xparse/xparse
-generic.tex)))
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/l3packages/xfp/xfp.sty))
! LaTeX Error: Command \PbDim already defined.
Or name \end... illegal, see p.192 of the manual.
See the LaTeX manual or LaTeX Companion for explanation.
Type H <return> for immediate help.
...
l.29 \newlength\PbDim
) (/home/stefano/local/texlive/2021/texmf-dist/tex/latex/xcolor/xcolor.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/graphics-cfg/color.cfg))
)
No file graphpaper-test.aux.
*geometry* driver: auto-detecting
*geometry* detected driver: pdftex
(/home/stefano/local/texlive/2021/texmf-dist/tex/context/base/mkii/supp-pdf.mki
i
[Loading MPS to PDF converter (version 2006.09.02).]
)
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/epstopdf-pkg/epstopdf-ba
se.sty
(/home/stefano/local/texlive/2021/texmf-dist/tex/latex/latexconfig/epstopdf-sys
.cfg)) [1] (./graphpaper-test.aux) )
(see the transcript file for additional information)
Output written on graphpaper-test.pdf (1 page, 1405 bytes).
Transcript written on graphpaper-test.log.
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答案1
这是euclideangeometry同一作者的软件包中的一个错误，它加载curve2e软件包然后都定义相同长度的命令。