FullCalendar MVC areas modul Build:Cannot find module 'moment' or its corresponding type declarations.

Question

In the project I have done, when I add the files of the FullCalendar plugin and build the project, it gives the following error.

Error :Build:Cannot find module 'luxon' or its corresponding type declarations. and Build:Cannot find module 'moment' or its corresponding type declarations.

When I go to the error in the Erros window, it redirects to the code below.

Code:

// Generated by dts-bundle v0.7.3-fork.1
// Dependencies for this module:
// ../../../../../luxon
// ../../../../../@fullcalendar/core

declare module '@fullcalendar/luxon' {
import { DateTime as LuxonDateTime, Duration as LuxonDuration } from 'luxon';
import { Calendar, Duration } from '@fullcalendar/core';
export function toDateTime(date: Date, calendar: Calendar): LuxonDateTime;
export function toDuration(duration: Duration, calendar: Calendar): LuxonDuration;
const _default: import("@fullcalendar/core").PluginDef;
export default _default;
}

In the system structure there is _LayoutAdmin.cshtml under the home directory.
There are codes on the site that I will add under the patches structure.

I could not solve the error and the problem somehow. can you help me