I am trying to delete a field in my purchase order using Odoo studio. Due to an error, I am trying to remove the 'date_planned' field. However, the following error is given when I try this:
Error while validating view near:
Field 'date_planned' used in attrs ({'invisible': ['|', '|', '|', ('state', 'not in', ('purchase', 'done')), ('mail_reminder_confirmed', '=', True), ('date_planned', '=', False), ('effective_date', '!=', False)]}) must be present in view but is missing.
How can I solve this?