我在 LyX 上使用“beamer-conference-ornate-20min.lyx”模板，我想添加一个交换图，如下所示：
\[\begin{tikzcd} \ldots & {C_{p+1}} & {C_p} & {C_{p+1}} & \ldots \\ \ldots & {D_{p+1}} & {D_p} & {D_{p+1}} & \ldots \arrow["{\partial_{p+2}}", from=1-1, to=1-2] \arrow["{\partial_{p+1}}", from=1-2, to=1-3] \arrow["{\partial_{p}}", from=1-3, to=1-4] \arrow["{\partial_{p-1}}", from=1-4, to=1-5] \arrow["{f_{p+1}}"', from=1-2, to=2-2] \arrow["{\partial'_{p+2}}", from=2-1, to=2-2] \arrow["{\partial'_{p+1}}", from=2-2, to=2-3] \arrow["{f_p}"', from=1-3, to=2-3] \arrow["{\partial'_{p}}", from=2-3, to=2-4] \arrow["{f_{p+1}}"', from=1-4, to=2-4] \arrow["{\partial'_{p-1}}", from=2-4, to=2-5] \end{tikzcd}\]
我已经验证过这在 Book 文档类上工作得很好（在 LaTeX 序言中添加“\usepackage{tikz-cd}”之后）。但是，当我在 beamer 文档类文件上执行相同操作并尝试编译为 pdf 时，出现错误。
答案1
添加后\begin{frame}[fragile]您就可以获得所需的输出。
\documentclass[12pt]{beamer}
\usepackage{tikz-cd}
\begin{document}
\begin{frame}[fragile] %<-----------------------
\[\begin{tikzcd} \ldots & {C_{p+1}} & {C_p} & {C_{p+1}} & \ldots \\ \ldots & {D_{p+1}} & {D_p} & {D_{p+1}} & \ldots \arrow["{\partial_{p+2}}", from=1-1, to=1-2] \arrow["{\partial_{p+1}}", from=1-2, to=1-3] \arrow["{\partial_{p}}", from=1-3, to=1-4] \arrow["{\partial_{p-1}}", from=1-4, to=1-5] \arrow["{f_{p+1}}"', from=1-2, to=2-2] \arrow["{\partial'_{p+2}}", from=2-1, to=2-2] \arrow["{\partial'_{p+1}}", from=2-2, to=2-3] \arrow["{f_p}"', from=1-3, to=2-3] \arrow["{\partial'_{p}}", from=2-3, to=2-4] \arrow["{f_{p+1}}"', from=1-4, to=2-4] \arrow["{\partial'_{p-1}}", from=2-4, to=2-5] \end{tikzcd}\]
\end{frame}
\end{document}
