Rule 'X' is not allowed 'Y'.
where X is one of find, find-end, find-start, or
translate and Y is either in cross-translations,
in down-translations, in up-translations, or
with the -library option.
Compilation continues but no compiled source code file will be saved.
All rules are allowed in context-translations. Only find,
find-end, and find-start rules are allowed in
cross-translations. All rules except find, find-end, and
find-start rules are allowed in down-translations. All rules
except translate rules are allowed in
No rules are allowed when the -library option is specified on the