Can't find app module when requiring from another module

[jorbascrumps]

Given the following app structure, it does not appear possible to have one app-level module require another:

| app/
| -- node_modules/
| ---- module-one/
| ------ index.ts
| ---- module-two/
| ------ index.ts

Trying to import module-one from inside module-two..

import ModuleOne = require('module-one');

.. results in the following error:

error TS2307: Cannot find external module 'module-one'.

This works if module-two is at the app root level. Is there any way around this?

[svallory]

The correct syntax for that is import ModuleOne = require('../module-one');