titling package in beamer class gives error: “! Undefined control sequence. \if@titlepage”

Question

Using the titling package for a beamer class document results in an error even for the simplest possible setup (see example below). I did not find any documentation that would rule out using titling in a beamer class document. My question thus is:

• Can you help me getting the titling package to work?

• If not, are there good alternatives to make commands like \thetitle, \theauthor, \thedate available in a beamer document?

Description: The following MWE

\documentclass[10pt]{beamer}
\usepackage{titling} % 
% 
\title{Some title}
\author{A.N. Author}
\date{Some Day}
% 
\begin{document}
\frame{\titlepage}  
\end{document}

results in an error

! Undefined control sequence.

l.35 \if@titlepage

While the same code compiles fine when the titling package is not loaded. It also runs fine with the titling package when using the article class.

I am using pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) and compile in TeXStudio.

Answer 1

You don't need the titlingpackage here, since title, authoretc. can be used by default.

\documentclass[10pt]{beamer}
% 
\title{Some title}
\subtitle{Some subtitle}
\author{A.N. Author}
\date{Some Day}
% 
\begin{document}
\frame{\titlepage}  
\end{document}