当我尝试使用 LaTeX Workshop 在 VSCode 中构建文件时，构建图标会运行并旋转，但随后会变成红色 X，并且 pdf 不会更新。昨天它还能正常工作，但突然间就不能正常工作了。我已确认这不是文档中的错误，因为它在 Overleaf 中可以正常工作。如果我重新启动 VSCode，pdf 就会使用新更新的内容进行编译。此外，如果我刷新所有查看器，pdf 也会更新。不确定为什么构建或保存文档无法编译。我将附上 LaTeX 编译器日志：
Win CP console initial and current in/out Win: (437, 437), (1252, 1252)
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\newcommand{\Ithree}{\ensuremath{\begin{bmatrix}1 & 0 & 0\\0 & 1 & 0\\0 & 0 & 1\\\end{bmatrix}}}
\newcommand{\Ifour}{\ensuremath{\begin{bmatrix}1 & 0 & 0 & 0\\0 & 1 & 0 & 0\\0 & 0 & 1 & 0\\0 & 0 & 0 & 1\\\end{bmatrix}}}
\newcommand{\In}{\ensuremath{\begin{bmatrix}1 & 0 & \cdots & 0\\0 & 1 & \cdots & 0\\\vdots & \vdots & \ddots & \vdots\\0 & 0 & \cdots & 1\\\end{bmatrix}}}
\newcommand{\mat}[1]{\ensuremath{\begin{bmatrix}#1\end{bmatrix}}}
\newcommand{\nmat}[9]{\ensuremath{\begin{bmatrix}#1 & #2 & \cdots & #3\\#4 & #5 & \cdots & #6\\\vdots & \vdots & \ddots & \vdots\\#7 & #8 & \cdots & #9\\\end{bmatrix}}}
\geometry{
a4paper,
total={170mm,257mm},
left=10mm,
right=10mm,
top=15mm,
bottom=15mm
}
\begin{document}
Dynamics
\n
\n
\textbf{1.(a)}
\end{document}
答案1
更合理的示例文档是
\documentclass{article}
\usepackage{mathabx}
\usepackage{amsfonts}
\begin{document}
\end{document}
产生
! LaTeX Error: Command `\ulcorner' already defined.
See the LaTeX manual or LaTeX Companion for explanation.
Type H <return> for immediate help.
...
l.74 ...lcorner}{\mathopen} {AMSa}{"70}{AMSa}{"70}
?
字体mathabx是选择因此根据设计，该包定义了同名的命令，但使用 mathabx 字体和编码。