使用 beamerfoils 将目录添加到 Beamer

Question

我想\tableofcontents在这个beamer例子中添加一个。我曾尝试遵循这个指导，但似乎我缺少一些命令：

\documentclass{beamer}
\usepackage{beamerfoils}

\beamertemplatetheoremsnumbered
\setbeamerfont{institute}{size=\small}
\title[Title]{Title}
\author{author}
\institute{University of }
\date{}
\begin{document}
\maketitle
\tableofcontents

\foilhead{First Frame}
This is on the first frame.

\pagebreak

This is on the second frame, which is a continuation of the first.

\foilhead{Third Frame}

This is on the third frame.

\endfoil
\end{document}

foil我得到的是，应该是的地方一片空白tableofcontents。