Hello, 

I am getting this error in this javascript code yet it is working well in Odoo 16.

The following modules are needed by other modules but have not been defined, they may not be present in the correct asset bundle: web.ajax

How do I go about this?
Thanks in advance.

/** @odoo-module **/

odoo.define("dynamic_access_rights.core", [], function(require) {
    "use strict";

    const ajax = require("web.ajax");
    let dynamics = null;

    function update_buttons(target_buttons){
        for(let button of target_buttons){
            let klas = `dynamics-${button.restriction}`
            let name = button.name
            let buttons1 = $(`button[name='${name}']`)
            let buttons2 = $(`.${name}`)
            buttons1.each(function (){
                $(this).addClass(klas)
            })
            buttons2.each(function (){
                $(this).addClass(klas)
            })
        }
    }
    function update_pages(target_pages){
        for(let page of target_pages){
            let klas = `dynamics-${page.restriction}`
            let name = page.name
            let anchors = $(`a[role='tab']`)
            anchors.each(function (){
                if($(this).text().toLowerCase() === name.toString().toLowerCase()){
                    let page_id = $(this).attr('href');
                    $(this).addClass(klas)
                    $(`${page_id}`).addClass(klas)
                }
            })
        }
    }

    function refresh_rights(){
        let urlString = window.location.href.split('#')[1]
        const params = new URLSearchParams(urlString);
        let active_model = params.get('model')
        let data = dynamics[active_model]
        if(data && data['buttons']){
            update_buttons(data['buttons'])
        }
        if(data && data['pages']){
            update_pages(data['pages'])
        }
    }

    $(document).ready(function(){
        ajax.jsonRpc("/fetch-dynamic-objects", "call", {},)
            .then(function (data) {
                console.log("data is",data)
                dynamics = data;
                setInterval(refresh_rights, 500)
            }).catch(function (error) {
            if (error) {
                console.error(error)
            }
        });
    })
})