renewcommand examples broken?

[Albert Puig]

Hi!

I'm trying to use beamer's renewcommand, and for understanding this I just tried to copy the example in the "9.6.1 Making Commands and Environments Overlay Specification-Aware" section:

\renewenvironment<>{verse}

    {\begin{actionenv}#1\begin{originalverse}}

    {\end{originalverse}\end{actionenv}}

My MWE is

\documentclass[]{beamer}

\renewenvironment<>{verse}

    {\begin{actionenv}#1\begin{originalverse}}

    {\end{originalverse}\end{actionenv}}

\begin{document}

\begin{frame}{Test}

    First line

\end{frame}

\end{document}

And the error is

! LaTeX Error: Command \beamerx@\verse already defined.

               Or name \end... illegal, see p.192 of the manual.

See the LaTeX manual or LaTeX Companion for explanation.

Type  H <return>  for immediate help.

 ...

l.5     {\end{originalverse}\end{actionenv}}

Am I doing something stupid? I am just copying the example. Beamer version is 3.36 and latex is

This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015) (preloaded format=pdflatex)

Thanks,

Albert

[Mark Yagnatinsky]

Try the clever folks at tex.stackexchange.com
I think some TeX wizards live there.

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