TeX 专家。
下面是我在编译过程中看到的错误的 MWE，我认为该错误与 revtex 有关：
\documentclass{revtex4-2}
\pdfoutput=1
\begin{document}
\title{the title}
\author{the author}
\affiliation{his/her affiliation}
\date{\today}
\begin{abstract}
This is the abstract.
\end{abstract}
\maketitle
\section{Introduction}
testing 1-2-3
\end{document}
控制台上的（缩短的）输出是：
This is pdfTeX, Version 3.14159265-2.6-1.40.21 (MiKTeX 20.11) (preloaded format=pdflatex 2020.12.8) 9 DEC 2020 09:54
entering extended mode
**./test.tex
(test.tex
LaTeX2e <2020-10-01> patch level 2
L3 programming layer <2020-12-03> xparse <2020-03-03>
("C:\Users\myusername\AppData\Roaming\MiKTeX\2.9\tex/latex/revtex\revtex4-2.c
ls"
Document Class: revtex4-2 2019/01/18/14:29:48 4.2c (https://journals.aps.org/re
vtex/ for documentation)
Copyright (c) 2019 American Physical Society.
mailto:[email protected]
Licensed under the LPPL:
http://www.ctan.org/tex-archive/macros/latex/base/lppl.txt
Arthur Ogawa <arthur_ogawa at sbcglobal dot net>
Based on work by David Carlisle <david at dcarlisle.demon.co.uk>Version (4.2c)
: Modified by Mark Doyle
.
ltxutil[2019/01/18/14:29:48 4.2c utilities package (portions licensed from W. E
. Baxter web at superscript.com)]
.
.
.
! Extra \endgroup.
\document ->\endgroup
\document@inithook \true@sw {}\UseOneTimeHook {begindo...
l.7 \begin{document}
?
Class revtex4-2 Info: Unrecognized LaTeX tabular. Please update this document c
lass! (Proceeding with fingers crossed.) on input line 7.
Class revtex4-2 Info: cite was not loaded (OK!) on input line 7.
Class revtex4-2 Info: mcite was not loaded (OK!) on input line 7.
Class revtex4-2 Info: multicol was not loaded (OK!) on input line 7.
! LaTeX Error: Missing \begin{document}.
See the LaTeX manual or LaTeX Companion for explanation.
Type H <return> for immediate help.
...
l.7 \begin{document}
?
我应该补充一点，同样的代码在 overleaf 上运行正常，也就是说没有这些错误。如果我使用 article 类而不是 revtex（并注释掉从属关系），那么它也可以正常工作。
非常感谢您的帮助。