我正在尝试使用 eqexam 包随机化考试中的多项选择题答案。该包无需选项即可运行，但当我包含allowrandomize此功能所需的选项时，会出现错误。有什么建议吗？
我的代码：
\documentclass{article}
\usepackage[allowrandomize]{eqexam}%
\listfiles
\begin{document}
\begin{exam}{Exam1}
\begin{problem}
In what year did Columbus sail the ocean blue?
\begin{answers}{2}
\bChoices[random]
\Ans0 1st random choice\eAns
\Ans1\label{eq} 2nd (the correct) random choice\eAns
\Ans0 3rd random choice\eAns
\Ans0 4th random choice\eAns
\Ans0 5th random chioce\eAns
\eFreeze
\Ans0 None of these\eAns
\eChoices
\end{answers}
\end{problem}
\end{exam}
\end{document}
错误是“缺少开始文档”。同样，没有随机化也可以正常工作。
编辑：我\listfiles之前已经添加了\begin{document}。这将生成以下 .log 文件：
This is pdfTeX, Version 3.1415926-2.3-1.40.12 (TeX Live 2011) (format=pdflatex 2011.7.3) 24 DEC 2012 18:34
entering extended mode
\write18 enabled.
file:line:error style messages enabled.
%&-line parsing enabled.
**"Fall Final.tex"
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./Fall Final.tex:3: LaTeX Error: Missing \begin{document}.
See the LaTeX manual or LaTeX Companion for explanation.
Ty
据我所知，TeX 从来没有列出使用过的文件。如果没有allowrandomize，我很容易就能找到使用过的文件在 .log 中的位置