NX(v8): Lazy loading from LIB directory causes "module not found .. index.ngfactory" on prod build

• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed
• I’m reporting the issue to the correct repository (not related to Angular, AngularCLI or any dependency)

Expected Behavior

To be able to load lazy modules in prod, it currently fails on a production build

Current Behavior

Using both ng server and ng build, all seems to go well. But doing an ng build --prod and any libraries that are in the libs folder causes the following error

Date: 2019-06-07T14:00:34.648Z
Hash: 7f5200abcc9a74395181
Time: 11800ms
chunk {0} runtime.5ba2ece7ab2ffcd4c683.js (runtime) 2.16 kB [entry] [rendered]
chunk {1} main.f737b50ade1e2927999b.js (main) 284 kB [initial] [rendered]
chunk {2} polyfills.079fa0a87867aebb25de.js (polyfills) 42.9 kB [initial] [rendered]
chunk {3} polyfills-es5.713635137766a4d7e797.js (polyfills-es5) 68 kB [initial] [rendered]
chunk {4} styles.09e2c710755c8867a460.css (styles) 0 bytes [initial] [rendered]
chunk {5} 5.3db1d83002b02c75fae1.js () 436 bytes  [rendered]

ERROR in ./src/app/app.module.ts
Module not found: Error: Can't resolve './../../../../libs/my-test/index.ngfactory' in '/Users/ian/Development/Personal/typescript/test/apps/test-ui/src/app'

I actually have 2 lazy loaded modules, the one inside app works, if i comment out the one inside lib then it builds, otherwise you get the error above.

The 2 modules are exactly the same and created for testing, they are using the new way of doing lazy loading of modules in angular 8.

RouterModule.forRoot(
    [{ path: '', loadChildren: () => import("./my-lazy-load/my-lazy-load-routing.module").then(m => m.MyLazyLoadRoutingModule)},
      { path: 'xyz', loadChildren: () => import("../../../../libs/my-test").then(m => m.MyLazyLoadModule)}
    ],
    { initialNavigation: 'enabled', enableTracing: true }
  )

Context

Please provide any relevant information about your setup:

• version of Nx 8
• version of Angular CLI 8

[FrozenPandaz]

^ https://github.com/angular/angular-cli/issues/14707

Repro: https://github.com/FrozenPandaz/demos/blob/lazybug/libs/lib1/src/index.ts

[iangregsondev]

@FrozenPandaz Nice catch! - It works!, I am using the workaround. Thank you.