can not find module TypeScript error message?

Question

I created a TypeScript's class and published it on npm
https://www.npmjs.com/package/mds.persian.calendar

I installed it in a Angular project as the following command:
npm install mds.persian.calendar --save

It installed successfully, and I can see the mds.persian.calendar folder in node_modules folder but when I want to use it in my TypeScript file as the following code, it alert can not find module
import { MdsPersianCalendar } from 'MdsPersianCalendar';

How should I use it?

You have to use the correct package name. It is register as mds.persian.calendar in npm. — Sebastian Sebald
– Sebastian Sebald, Commented Apr 28, 2017 at 6:29

Markus · Accepted Answer · 2017-04-28 07:37:27Z

In mds.persian.calendar/package.json this config is missing:

{ ... "main": "./mds.persian.calendar.js", "types": "./mds.persian.calendar.d.ts" }

That's why you need to reference this module relative e.g. like this

//./wwwroot/ts/main.ts // This doesn't work //import { MdsPersianCalendar } from 'mds.persian.calendar'; import { MdsPersianCalendar } from '../../node_modules/mds.persian.calendar/mds.persian.calendar'; let calendar = new MdsPersianCalendar(); calendar.now

Have you changed "import { MdsPersianCalendar } from 'MdsPersianCalendar';" to "import { MdsPersianCalendar } from 'mds.persian.calendar';" ?

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