Import library in library - error TS2307: Cannot find module

Type of Issue

[x] Bug Report
[ ] Feature Request

Description

I have two libraries generated with Angular CLI. I also use Nrwl Nx

1. <@scope>/hello-world-a
2. <@scope>/hello-world-b

When I import hello-world-b in hello-world-a and try to build, I get the following error:

BUILD ERROR libs/hello-world-a/src/lib/hello-world-a.module.ts(3,35): error TS2307: Cannot find module ‘@<@scope>/hello-world-b’. libs\hello-world-a\src\lib\hello-world-a.module.ts(6,27): Error during template compile of ‘HelloWorldAModule’ Could not resolve @<@scope>/hello-world-b relative to D:/Projekte/Git/<@scope>-maps/libs/hello-world-a/src/lib/hello-world-a.module.ts… libs\hello-world-a\src\lib\hello-world-a.module.ts(6,27): Error during template compile of ‘HelloWorldAModule’ Could not resolve @<@scope>/hello-world-b relative to D:/Projekte/Git/<@scope>-maps/libs/hello-world-a/src/lib/hello-world-a.module.ts…

How To Reproduce

1. ng generate library hello-world-a
2. ng generate library hello-world-b

in hello-world-a.module.ts import HelloWorldBModule

This should look like this:

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { HelloWorldBModule } from '@<scope>/hello-world-b';

@NgModule({
  imports: [CommonModule, HelloWorldBModule]
})
export class HelloWorldAModule {}

Then run: ng-packagr -p libs/hello-world-a/package.json

Expected Behaviour

I expect to import one library in another library without error

Version Information

ng-packagr: 4.1.0
@angular/*: 6.1.0
typescript: 2.7.2
rxjs: 6..2.2.
node: 8.11.3
npm: 5.6.0
@nrwl/nx: 6.2.1

[alan-agius4]

You need ng-packagr, but as a dependencies. As Angular CLI have a wrapper for it.

I think what you are describing is secondary entry points https://github.com/dherges/ng-packagr/blob/master/docs/secondary-entrypoints.md

Sorry for the short reply but I am currently commuting

On Fri, 24 Aug 2018 at 18:55, Daniel Groh [e-mail] wrote:

Do you mean, if I use Angular CLI and Nrwl I don’t need ng-packagr at all? How do I publish my libraries to npm ? Doing like you said, I would have to publish all my libraries instead of single ones. I thought that is the reason for this sample: https://github.com/dherges/nx-packaged

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