[translations] check-translation problem

[Federico Bruni <brunology@xxxxxxx>]

I'm studyin' and tryin' the commands of the "Documentation translation 
maintenance" of the CG.
I have the following problem:


fede@debian:~/lilypond-translation/Documentation$ make ISOLANG=it 
check-translation
ISOLANG=it /usr/bin/python ../scripts/auxiliar/check_translation.py 
it/learning.tely it/learning/common-notation.itely 
it/learning/fundamental.itely it/learning/preface.itely 
it/learning/tutorial.itely it/macros.itexi
langdefs.py: warning: lilypond-doc gettext domain not found.
Traceback (most recent call last):
  File "../scripts/auxiliar/check_translation.py", line 168, in <module>
    main ()
  File "../scripts/auxiliar/check_translation.py", line 165, in main
    do_file (i, langdefs.LANGDICT.keys ())
  File "../scripts/auxiliar/check_translation.py", line 54, in do_file
    raise Exception ('cannot determine language for ' + file_name)
Exception: cannot determine language for it/learning.tely
make: *** [check-translation] Error 1


What's wrong?
Thanks,
Federico
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