我一直在准备一个需要交换图的演示文稿。现在我尝试使用 tikzcd 绘制图表，但它没有正常工作。以下是代码：
\begin{frame}{Smooth Structure on Manifolds}
\onslide<1->{Let $(U,\varphi),\ (V,\psi)$ be two charts. If $U\cap V\neq \phi$, then define the map $\psi\circ \varphi^{-1}:\varphi(U\cap V)\to \psi(U\cap V)$, called the \textbf{transition map from $\varphi$ to $\psi$.}}
\onslide<2->{We say that the charts $(U,\varphi),\ (V,\psi)$ are \textbf{smoothly compatible} if either $U\cap V = \phi$, or $\psi\circ \varphi^{-1}$ is a \textit{\underline{diffeomorphism}}.\\}
\onslide<3->{\begin{tikzcd}
U\cap V \arrow[r, "\varphi"] \arrow[d, "psi"]
& \varphi(U\cap V) \arrow[rd, "\psi\circ \varphi^{-1}"] \\
\psi(U\cap V)
\end{tikzcd} \\}
\onslide<4->{A \textit{\underline{diffeomorphism}} is a smooth homeomorphism such that the inverse is also smooth.\\~\\}
\end{frame}
输出如下：
以下是错误列表：
我该如何纠正？请帮忙。
我该如何纠正这个问题？请帮忙。