很抱歉向您提出这个愚蠢的问题，但我收到了“未定义的控制序列”错误：
! Undefined control sequence.
l.11 \texttransparent
{0.5}{Hello World}
我的 MWE 如下所示：
\listfiles
\documentclass{article}
\usepackage{transparent}
\usepackage[ngerman]{babel}
\begin{document}
Hallo Welt
\texttransparent{0.5}{Hello World}
\end{document}
我可以确认，该transparent包已安装（当我打电话时它被列出tlmgr list --only-installed）。
我做错了什么？我使用的是 TexPad、MacOS
整个输出是：
This is TexpadTeX (based on TeX Version 3.14159265 with e-TeX extensions) running in extended mode embedded in Texpad 623 (preloaded format=latex 2021.3.29) 28 JUL 2021 13:13
**
(Ohne Titel.tex
LaTeX2e <2017-04-15>
Babel <3.16> and hyphenation patterns for 84 language(s) loaded.
(article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(size10.clo
File: size10.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
\c@subparagraph=\count84
\c@figure=\count85
\c@table=\count86
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
) (transparent.sty
Package: transparent 2016/05/16 v1.1 Transparency via pdfTeX's color stack (HO)
(ifpdf.sty
Package: ifpdf 2017/03/15 v3.2 Provides the ifpdf switch
)
Package transparent Warning: Loading aborted, because pdfTeX is not running in PDF mode.
) (babel.sty
Package: babel 2018/01/04 3.16 The Babel package
(switch.def
File: switch.def 2018/01/04 3.16 Babel switching mechanism
) (ngerman.ldf
Language: ngerman 2016/11/02 v2.9 German support for babel (new orthography)
(ngermanb.ldf
Language: ngermanb 2016/11/02 v2.9 German support for babel (new orthography)
(babel.def
File: babel.def 2018/01/04 3.16 Babel common definitions
(switch.def
File: switch.def 2018/01/04 3.16 Babel switching mechanism
)
\babel@savecnt=\count87
\U@D=\dimen103
(txtbabel.def)
\bbl@dirlevel=\count88
)
Package babel Info: Making " an active character on input line 125.
)))
No file "Ohne Titel".aux.
LaTeX Font Info: Checking defaults for OML/cmm/m/it on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for T1/cmr/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for OT1/cmr/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for OMS/cmsy/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for OMX/cmex/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for U/cmr/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
! Undefined control sequence.
l.12 \texttransparent
{0.5}{Hello World}
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.
[1
] (Ohne Titel.aux)
*File List*
article.cls 2014/09/29 v1.4h Standard LaTeX document class
size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
transparent.sty 2016/05/16 v1.1 Transparency via pdfTeX's color stack (HO)
ifpdf.sty 2017/03/15 v3.2 Provides the ifpdf switch
babel.sty 2018/01/04 3.16 The Babel package
ngerman.ldf 2016/11/02 v2.9 German support for babel (new orthography)
***********
)
This is TexpadTeX (based on TeX Version 3.14159265 with e-TeX extensions) running in extended mode embedded in Texpad 623 (preloaded format=latex 2021.3.29) 28 JUL 2021 13:13
**
(Ohne Titel.tex
LaTeX2e <2017-04-15>
Babel <3.16> and hyphenation patterns for 84 language(s) loaded.
(article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(size10.clo
File: size10.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
\c@subparagraph=\count84
\c@figure=\count85
\c@table=\count86
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
) (transparent.sty
Package: transparent 2016/05/16 v1.1 Transparency via pdfTeX's color stack (HO)
(ifpdf.sty
Package: ifpdf 2017/03/15 v3.2 Provides the ifpdf switch
)
Package transparent Warning: Loading aborted, because pdfTeX is not running in PDF mode.
) (babel.sty
Package: babel 2018/01/04 3.16 The Babel package
(switch.def
File: switch.def 2018/01/04 3.16 Babel switching mechanism
) (ngerman.ldf
Language: ngerman 2016/11/02 v2.9 German support for babel (new orthography)
(ngermanb.ldf
Language: ngermanb 2016/11/02 v2.9 German support for babel (new orthography)
(babel.def
File: babel.def 2018/01/04 3.16 Babel common definitions
(switch.def
File: switch.def 2018/01/04 3.16 Babel switching mechanism
)
\babel@savecnt=\count87
\U@D=\dimen103
(txtbabel.def)
\bbl@dirlevel=\count88
)
Package babel Info: Making " an active character on input line 125.
))) (Ohne Titel.aux)
LaTeX Font Info: Checking defaults for OML/cmm/m/it on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for T1/cmr/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for OT1/cmr/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for OMS/cmsy/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for OMX/cmex/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
LaTeX Font Info: Checking defaults for U/cmr/m/n on input line 8.
LaTeX Font Info: ... okay on input line 8.
! Undefined control sequence.
l.12 \texttransparent
{0.5}{Hello World}
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.
[1
] (Ohne Titel.aux)
*File List*
article.cls 2014/09/29 v1.4h Standard LaTeX document class
size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
transparent.sty 2016/05/16 v1.1 Transparency via pdfTeX's color stack (HO)
ifpdf.sty 2017/03/15 v3.2 Provides the ifpdf switch
babel.sty 2018/01/04 3.16 The Babel package
ngerman.ldf 2016/11/02 v2.9 German support for babel (new orthography)
***********
)