auto-transpose missing guile module 2.24.3

[hf7y]

Console reports this error when loading oll-misc.pitch.auto-transpose

oll-misc/pitch/auto-transpose/module.ily:17:2: error: Guile signaled an error for the expression beginning here
#
(use-modules (ice-9 copy-tree))
no code for module (ice-9 copy-tree)

[markk]

I can't reproduce this. What Guile version are you using? Output of lilypond --version would be helpful.