# Problem/bug with Beamer and multimedia package

EDIT: This is indeed a bug that has been fixed in https://github.com/josephwright/beamer/issues/437#event-1377360577 and should be available soon.

Since updating Miktex today (12/7/2017) I cannot compile my slides anymore. I keep getting the error

("C:\Program Files\MiKTeX 2.9\tex\latex\beamer\multimedia\multimedia.sty" ! Undefined control sequence. \beamer@pdfobj stream attr {/R 22050} {}\beamer@pdfrefobj \beamer... l.262 }

Deleting the multimedia package resolves the error. This seems like a bug as the beamer manual explicitly states that the package is compatible. I do not know where else to post this. A MWE is:

\documentclass[beamer,usepdftitle=false]{beamer}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{multimedia}

\begin{document}
\title[]{\textbf{MWE}}

\maketitle

\end{document}

• it works fine at me (compiled with xelatex). do you have installed recent and all needed packages? – Zarko Dec 7 '17 at 19:00
• – user36296 Dec 7 '17 at 19:01
• @samcarter Thanks a lot. When googling for beamer and bugs, I somehow missed the Github page. That explains it. – jpfeifer Dec 7 '17 at 19:05
• Fix is on it's way to CTAN – Joseph Wright Dec 7 '17 at 20:44

This is a bug in beamer version 3.45, see the bug report in https://github.com/josephwright/beamer/issues/437