Why does 'install-info' keep warning me about “lilypond”?

Question

I try to install nasm this morning when suddenly I got this message . It would be thankful if someone could explain about whats happening here and what cause the message appear.

install-info: warning: no info dir entry in `/usr/share/info/lilypond-learning.info.gz'
install-info: warning: no info dir entry in `/usr/share/info/music-glossary.info.gz'
install-info: warning: no info dir entry in `/usr/share/info/lilypond-changes.info.gz'
install-info: warning: no info dir entry in `/usr/share/info/lilypond-essay.info.gz'
install-info: warning: no info dir entry in `/usr/share/info/lilypond-notation.info.gz'
install-info: warning: no info dir entry in `/usr/share/info/lilypond-contributor.info.gz'
install-info: warning: no info dir entry in `/usr/share/info/lilypond-extending.info.gz'
install-info: warning: no info dir entry in `/usr/share/info/lilypond-snippets.info.gz'
install-info: warning: no info dir entry in `/usr/share/info/lilypond-usage.info.gz'

Answer 1

This is a known bug in the Lilypond package and has not yet been fixed.

The warnings are annoying but harmless, so I'd just ignore them (or remove the lilypond package).

Hopefully this gets fixed by Ubuntu 12.10...