this is likely not a bug. try running this command
yelp /usr/share/gnome/help/files-and-docs/C/files-and-docs.xml
and see if you get the same error message
yelp /usr/share/gnome/help/about-ubuntu/C/about*
should open the about Ubuntu help. if these files are corrupted you will
probably need to
Marking as invalid please do the steps outlined above, if the problem
persists refile the bug showing the steps taken to correct the issue or
post a question in launchpad or the ubuntu community forums.
** Changed in: yelp (Ubuntu)
Status: New = Invalid
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The help system reports that
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/15106115/Dependencies.txt
** Attachment added: ProcMaps.txt
http://launchpadlibrarian.net/15106116/ProcMaps.txt
** Attachment added: ProcStatus.txt
http://launchpadlibrarian.net/15106117/ProcStatus.txt
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The help