命令 \widering 已定义

命令 \widering 已定义

每当我使用基本软件包开始写一篇文章时,我总是收到这个错误:

\documentclass[12pt,a4paper,oneside]{book}
\usepackage{amsmath,amssymb,yhmath,mathrsfs,fancyhdr,enumerate,tkz-euclide,tikz-3dplot}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{fouriernc}
\usepackage{framed,tikz,tkz-tab,tkz-linknodes,pgfplots,currfile,enumerate}
\usetikzlibrary{shapes.geometric,arrows,calc,intersections,angles,patterns,snakes}
\usetkzobj{all}
\usepgfplotslibrary{fillbetween}
\pgfplotsset{compat=1.9}
\usepackage[top=2cm, bottom=2cm, left=2cm, right=1.5cm] {geometry}
\usepackage[hidelinks,unicode,pdfencoding=unicode, psdextra]{hyperref}
\usepackage[book]{ex_test}
%CÁC GÓI, LỆNH VIẾT TẮT CẦN THÊM
%CẤU TRÚC TỰ LUẬN
\usepackage[most]{tcolorbox}

答案1

fouriernc试图定义\widering,但它已经被 定义yhmath。您可以删除其中一个包,或者将

\let\widering\relax

\usepackage{fouriernc}

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