+@noindent
+Another typical issue when switching branches between master and
+lilypond/translation is the appearance/disappearance of translated
+versions of some manuals. If you see such a warning from make:
+
+@example
+No rule to make target `X', needed by `Y'
+@end example
+
+@noindent
+Your best bet is to delete the file Y.dep and to try again.
+