Can you please post your xml code as well? Are you creating a new object?

You don't need to inherits product.template object as product.product already inherits product.template

Hi Sudhir Arya , this is my xml code :

<?xml version="1.0" encoding="utf-8"?>

<odoo>

<data>

<record id="view_court_product_form" model="ir.ui.view">

<field name="name">view.court.product.form</field>

<field name="model">cg.court.product</field>

<field name="arch" type="xml">

<form string="Product">

<sheet>

<field name='product_variant_count' invisible='1'/>

<field name='is_product_variant' invisible='1'/>

<field name="id" invisible="True"/>

<div class="oe_button_box" name="button_box">

<button class="oe_stat_button" name="action_used_in_bom" type="object" icon="fa-signal">

<field string="Sold" name="product_variant_count" widget="statinfo" /> Unit(s)

</button>

<button name="toggle_active" type="object"

class="oe_stat_button" icon="fa-archive">

<field name="active" widget="boolean_button"

options='{"terminology": "archive"}'/>

</button>

</div>

<field name="image_medium" widget="image" class="oe_avatar"/>

<div class="oe_title">

<label class="oe_edit_only" for="name" string="Product Name"/>

<h1><field name="name" placeholder="Product Name"/></h1>

<div name="options" groups="base.group_user">

<div>

<field name="sale_ok"/>

<label for="sale_ok"/>

</div>

</div>

</div>

<notebook>

<page string="General Information" name="general_information">

<group>

<group name="group_general">

<field name="categ_id" string="Product Category"/>

<field name="default_code"/>

<field name="barcode"/>

</group>

<group name="group_standard_price">

<field name="list_price" widget='monetary' options="{'currency_field': 'currency_id', 'field_digits': True}"/>

<field name="taxes_id" widget='many2many_tags' options="{'currency_field': 'currency_id', 'field_digits': True}"/>

<label for="standard_price" groups="base.group_user" attrs="{'invisible': [('product_variant_count', '&gt;', 1), ('is_product_variant', '=', False)]}"/>

<div name="standard_price_uom" groups="base.group_user" attrs="{'invisible': [('product_variant_count', '&gt;', 1), ('is_product_variant', '=', False)]}">

<field name="standard_price" widget='monetary' options="{'currency_field': 'currency_id', 'field_digits': True}"/>

</div>

</group>

</group>

<group string="Internal Notes">

<field name="description" nolabel="1" placeholder="This note is only for internal purposes."/>

</group>

</page>

</notebook>

</sheet>

</form>

</field>

</record>

<record id="view_court_product_tree" model="ir.ui.view">

<field name="name">view.cg.product.tree</field>

<field name="model">cg.court.product</field>

<field name="arch" type="xml">

<tree string="Court Product">

<field name="name"/>

<field name="barcode"/>

<field name="default_code"/>

<field name="list_price"/>

<field name="standard_price"/>

</tree>

</field>

</record>

<record id="action_cg_sport_booking_court_product" model="ir.actions.act_window">

<field name="name">Court Product</field>

<field name="type">ir.actions.act_window</field>

<field name="res_model">cg.court.product</field>

<field name="view_mode">tree,form</field>

<field name="help" type="html">

<p class="oe_view_nocontent_create">

</p>

</field>

</record>

</data>

</odoo>