Migration 5.4 to 5.6 error on sale_subscription
Hi,
I was trying to migrate from 5.4 to 5.6, I have a trouble on sale_subscription module, not sure how to fix it. I'm using 3.7.3.
These is the traceback.
21430 1234 [2020-09-02 22:30:04,501] WARNING trytond.convert Field method of 5@ir.cron not updated (id: cron_generate_invoice), because it has changed since the last update
Traceback (most recent call last):
File "/opt/api/bin/trytond-admin", line 23, in <module>
admin.run(options)
File "/opt/api/lib/python3.7/site-packages/trytond/admin.py", line 53, in run
activatedeps=options.activatedeps)
File "/opt/api/lib/python3.7/site-packages/trytond/pool.py", line 162, in init
lang=lang, activatedeps=activatedeps)
File "/opt/api/lib/python3.7/site-packages/trytond/modules/__init__.py", line 427, in load_modules
_load_modules(update)
File "/opt/api/lib/python3.7/site-packages/trytond/modules/__init__.py", line 397, in _load_modules
load_module_graph(graph, pool, update, lang)
File "/opt/api/lib/python3.7/site-packages/trytond/modules/__init__.py", line 221, in load_module_graph
classes = pool.fill(module, modules)
File "/opt/api/lib/python3.7/site-packages/trytond/pool.py", line 221, in fill
cls.__name__, (cls, previous_cls), {'__slots__': ()})
File "/opt/api/lib/python3.7/site-packages/trytond/pool.py", line 20, in __new__
new = type.__new__(cls, name, bases, dct)
TypeError: Cannot create a consistent method resolution
order (MRO) for bases ModelStorage, ModelView
Thanks in advance!