# Undefined Control Sequence \hyper@link error

Every time I compile my beamer presentation, I get a list of 83 errors all of the form:

Undefined Control Sequence


at each \end{frame} line.

How do I fix this?

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Can you please add to your question a minimal example code illustrating the undesired bahaviour? – Gonzalo Medina Apr 14 '11 at 4:06
This sounds like a 'passing' issue with particular versions of hyperref Could you add \listfiles to a minimal example and add the resulting file list to your question? – Joseph Wright Apr 14 '11 at 6:14
You must update hyperref to version v6.82f. or later. (The bug is in 6.82e). If there is no update available yet, you can try to add \makeatletter\def\Hy@xspace@end{}\makeatother after loading beamer as a temporarly workaround. – Ulrike Fischer Apr 14 '11 at 6:49
@Ulrike: You might want to post this as an answer so that it can be accepted. – Martin Scharrer Apr 19 '11 at 9:00

You must update hyperref to version v6.82f. or later. (The bug is in 6.82e). If there is no update available yet, you can try to add \makeatletter\def\Hy@xspace@end{}\makeatother after loading beamer as a temporarly workaround.