feng@debian:~ $ ./start_gnuhealth.sh
2022-01-11 00:52:19 [INFO] Starting GNU Health Server version 3.9.0 ...
Traceback (most recent call last):
File "/home/feng/gnuhealth/tryton/server/trytond-6.0.13/bin/./trytond", line
34, in <module>
Pool.start()
File "/home/feng/gnuhealth/tryton/server/trytond-6.0.13/trytond/pool.py",
line 105, in start
register_classes()
File
"/home/feng/gnuhealth/tryton/server/trytond-6.0.13/trytond/modules/__init__.py",
line 347, in register_classes
the_module = import_module(module)
File
"/home/feng/gnuhealth/tryton/server/trytond-6.0.13/trytond/modules/__init__.py",
line 52, in import_module
module = importlib.import_module(fullname)
File "/usr/lib/python3.9/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 790, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File
"/home/feng/gnuhealth/tryton/server/trytond-6.0.13/trytond/modules/calendar/__init__.py",
line 17, in <module>
from .calendar_ import *
File
"/home/feng/gnuhealth/tryton/server/trytond-6.0.13/trytond/modules/calendar/calendar_.py",
line 20, in <module>
from .exceptions import (
ImportError: cannot import name 'InvalidRecurrence' from
'trytond.modules.calendar.exceptions'
(/home/feng/gnuhealth/tryton/server/trytond-6.0.13/trytond/modules/calendar/exceptions.py)
2022-01-11 00:52:20 [ERROR] Bailing out !
feng@debian:~ $
