I added a new module that depends on base module, and my model inherits res.partner, i need to add two fields: customer reference and reference type, i did that the way it should be but there is an error that has really irritated me. The error is:

`AttributeError: View definition error for inherited view 'reference.customer_reference_form' on model 'res.partner': Element '<field name="reference_name">' not found in parent view '%(parent_xml_id)s'.`

My reference.py file:

from osv import osv,fields
import decimal_precision as dp
import netsvc
import time
from datetime import date
import pooler

class res_partner_reference(osv.osv):
    _name = 'res.partner'
    _inherit = 'res.partner'
    _columns = {
                'reference_name':fields.char('Reference',required=True,size=64,help="Name of the person who refered the customer"),
                'category':fields.selection([('none','None'),('painter','Painter'),('carpenter','Carpenter'),('supplier','Supplier')],'Type of Reference', required=True, help="To describe Reference"),
                }
res_partner_reference()

and my view:

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>
        <record id="customer_reference_form" model="ir.ui.view">
            <field name="name">res.partner.form.inherit</field>
            <field name="model">res.partner</field>
            <field name="inherit_id" ref="base.view_partner_form" />
            <field name="arch" type="xml">
                <data>
                    <field name="name" position="after"/>
                    <field name="reference_name"/>
                    <field name="category"/>
                </data>
            </field>
        </record>
        <!-- <record id="customer_reference_tree" model="ir.ui.view">
            <field name="name">res.partner.tree.inherit</field>
            <field name="model">res.partner</field>
            <field name="inherit_id" ref="base.view_partner_tree" />
            <field name="arch" type="xml">            
                <data>
                    <field name="name" position="after"/>
                    <field name="ref_name"/>                    
                    <field name="category"/>
                </data>
            </field>
        </record> -->
        <record model="ir.actions.act_window" id="action_reference_form">
            <field name="name">Customer References</field>
            <field name="res_model">res.partner</field>
        </record>

        <menuitem name="References" id="menu_sale_references" parent="base.menu_sales" sequence="5" action="action_reference_form" />
        <menuitem name="Customer References" id="menu_account_references" parent="account.menu_finance" sequence="3" action="action_reference_form" />
    </data>
</openerp>

Kindly help its urgent.