How to solve this error
When i migrate account_voucher module from Odoo v11 to 13 it will display this error can anyone help me to solve this error ?
# for e in relaxng.error_log:
NameError: name 'relaxng' is not defined
The question has been closed for reason: not enough information given to provide help
by
Ermin Trevisan
1) When have you faced this error ? while database migration or custom module migration ?
2) If you are migration your database then ,Did you migrate your database with open upgrade and followed the steps like v11 to v12 to v13 ?
Module migration account_voucher module from Odoo v11 to 13
Please use a more specific title and provide some more context.