In Meeting app the Full Name is not able to display

1.meeting.js file

frappe.ui.form.on("Meeting Attendee", {
    attendee:function(frm,cdt,cdn){
    var attendee = frappe.model.get_doc(cdt,cdn);
    if(attendee.attendee)
    {
        frappe.call({
            method:"meeting.meeting.doctype.meeting.meeting.get_full_name",
            args:{
                attendee:attendee.attendee
            },
            callback: function(r) {
                frappe.model.set_value(cdt,cdn,"full_name",r.meesage);
            }
        });
    }
    else{
        frappe.model.set_value(cdt,cdn,"full_name",null);
    }
    }
});
  1. meeting.py
# -*- coding: utf-8 -*-
# Copyright (c) 2015, Frappe and contributors
# For license information, please see license.txt

from __future__ import unicode_literals
import frappe
from frappe import _
from frappe.model.document import Document

class Meeting(Document):
    def validate(self):
        k=0
        frappe.throw(_("testing {0}").format(k))
    """Set missing names"""
        for attendee in self attendees:
            frappe.throw(_("testing"))
            if not attendee.full_name:
                attendee.full_name = get_full_name(attendee.attendee)
@frappe.whitelist()
def get_full_name(attendee):
    user = frappe.get_doc("user",attendee)
    #frappe.throw(_("testing" {0}).format(full_name))
    return " ".join(filter(None,[user.first_name,user.middle_name,user.last_name))

Please help me out…Same thing i have done with the help of YouTube for meeting app.

Please check whether if loop is executing or not . Also, check for the output of attendee.attendee

How to check that my loop is executing or not? i am not aware of it.just started with sample meeting app.

You can check by putting debug statement in your code. use console.log for javascript debugging.
Check browser console for its output.

Here’s the help to open javascript console: web development - How do I open the JavaScript console in different browsers? - Webmasters Stack Exchange

hi
what about this error: The resource you are looking for is not available