我的org-mode latex预览下图好像有问题，tikzcd生成的源代码如下：
\documentclass[preview]{standalone}
\usepackage[usenames]{color}
% Package babel omitted
\usepackage{tikz}
\usepackage{amssymb}
\usepackage{tikz-cd}
\usetikzlibrary{babel}
\tikzset{every path/.style={line width=1 cm}}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
% Package fixltx2e omitted
\usepackage{graphicx}
\usepackage{grffile}
% Package longtable omitted
% Package wrapfig omitted
% Package rotating omitted
\usepackage[normalem]{ulem}
\usepackage{amsmath}
\usepackage{textcomp}
\usepackage{amssymb}
% Package capt-of omitted
% Package hyperref omitted
% Package commath omitted
\begin{document}
\definecolor{fg}{rgb}{0.396078,0.482353,0.513725}
\definecolor{bg}{rgb}{0.992157,0.964706,0.890196}
\pagecolor{bg}
{\color{fg}
\begin{tikzcd}
& & U\times F \arrow[ld, "\phi^{-1}", bend left] \\
(f^\ast E_)V \arrow[r, "\tilde f"] \arrow[d, "\tilde \pi\vert_\cdots"] & E_U \arrow[ru, "\phi"] \arrow[d, "\pi\vert_{E_U}"] & \\
V \arrow[r, "f"] & U &
\end{tikzcd}
}
\end{document}
latexmk -pdf告诉我：
! Missing { inserted.
<to be read again>
\def
l.37 \end{tikzcd}
?
然而，它在在线 tikzcd 编辑器。 我做错了什么？
答案1
\vert_\cdots是错误的，正确的是\vert_{\cdots}：
\documentclass{standalone}
\usepackage[usenames]{color}
\usepackage{tikz-cd}
\definecolor{fg}{rgb}{0.396078,0.482353,0.513725}
\definecolor{bg}{rgb}{0.992157,0.964706,0.890196}
\pagecolor{bg}
\begin{document}
{\color{fg}
\begin{tikzcd}
& & U\times F \ar[ld, "\phi^{-1}", bend left] \\
(f^\ast E)V \ar[r, "\tilde f"] % (f^\ast E_) is probably wrong
\ar[d, "\tilde \pi \vert_{\cdots}"] % <---
& E_U \ar[ru, "\phi"]
\ar[d, "\pi \vert_{E_U}"] %
& \\
V \ar[r, "f"]
& U &
\end{tikzcd}
}
\end{document}
