ProgrammingError: 错误: 字段 res_partner.instructor 不存在

代码：

# -*- coding: utf-8 -*-from odoo import fields, modelsclass Partner(models.Model):    _inherit = 'res.partner'    # Add a new column to the res.partner model, by default partners are not    # instructors    instructor = fields.Boolean("Instructor", default=False)    session_ids = fields.Many2many('openacademy.session',        string="Attended Sessions", readonly=True)

错误：

ProgrammingError: 错误:  字段 res_partner.instructor 不存在LINE 1: ..."."type" as "type","res_partner"."lang" as "lang","res_partn...

解决办法：

1.在__init__文件中取消 partner.py的引入，重启项目，

2.选择你的模块，进行卸载

3.__init__中重新引入partner.py，重启项目

4.安装模块