对于我的论文，我需要将两篇文章合并成一个文档。我查看了combine包裹这看起来很完美。但是，当我尝试排版我的文档时，我收到很多错误：
Latex Error: ./main.tex:81 LaTeX Error: Command \c@minilofdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \c@minilotdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \c@partlofdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \c@partlotdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \c@sectlofdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \c@sectlotdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \mtc@savelofdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \mtc@restorelofdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \mtchideinmainlof already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \mtc@savelotdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \mtc@restorelotdepth already defined.
Latex Error: ./main.tex:81 LaTeX Error: Command \mtchideinmainlot already defined.
Latex Error: ./main.tex:81 Undefined control sequence.
Latex Error: ./main.tex:81 Undefined control sequence.
（main.tex这是我的第一篇文章。它对我的另一篇文章提出了类似的抱怨）
它抱怨的未定义的控制序列是\begin{document}.
对我可能做错的事情有什么想法吗？