sambatlim

Error message:

None
Traceback (most recent call last):
  File "C:\Program Files (x86)\Odoo 12.0\server\odoo\api.py", line 1039, in get
    value = self._data[key][field][record._ids[0]]
KeyError: 2

During handling of the above exception, another exception occurred:

sambatlim

Run your CMD as administration and copy and paste the command below and hit enter.

"C:\Program Files (x86)\Odoo 12.0\python\python.exe" "C:\Program Files (x86)\Odoo 12.0\server\odoo-bin" scaffold manageasset "C:\Users\User\Desktop\custom_addons"

<*==============================================*>

Command explanation: 

"C:\Program Files (x86)\Odoo 12.0\python\python.exe" "C:\Program Files (x86)\Odoo 12.0\server\odoo-bin": this command is the respository of your odoo12 instalation -It used to be odoo-bin.
"scaffold": will create the module.

sambatlim

<?xml version="1.0" encoding="UTF-8"?>
<odoo>
	<data>
        <record id="student_menu_action" model="ir.actions.act_window">
        	<field name="name">Students</field>
        	<field name="res_model">student.student</field>
        	<field name="view_type">form</field>
        	<field name="view_mode">tree,form</field>
        	<field name="domain">[]</field>
        	<field name="help" type="html">

sambatlim

# -*- coding: utf-8 -*-
{
    "name": "assettracking",
    "summary": """
        Asset tracking includes the functionality of inventory module""",
    "description": """
        Asset tracking system was used in in-house production for NECTEC project
    """,
    "author": "NECTEC",
    "website": "https://www.nectec.or.th/en/",

sambatlim

<?xml version="1.0" encoding="UTF-8"?>
<odoo>
	<data>
        <record id="student_menu_action" model="ir.actions.act_window">
        	<field name="name">Students</field>
        	<field name="res_model">student.student</field>
        	<field name="view_type">form</field>
        	<field name="view_mode">tree,form</field>
        	<field name="domain">[]</field>
        	<field name="help" type="html">