Angular 4 - Could not resolve submodule for routing

I was using the absolute path convention: app/home#HomeModule and it wasn't working.

I then tried the relative path convention: ./home#HomeModule and it worked.

... in the CLI, the paths to lazy routes should be relative from the file you're in

Source

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I followed this Tutorial and it used the absolute path convention and it worked.

Would love to know why the inconsistency...

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UPDATE:

As Friedrich mentioned, to make it work using an Absolute Path, update src/tsconfig.app.json as follows:

{
  ...,
  "compilerOptions": {
    ...,
    baseUrl: "./"
  }
}

I had the same issue and none of the answers above worked for me,the final solution i found was using the absolute path of the module and module class name after the '#'.

    export const ROUTES: Routes = [
       {path: '', loadChildren: 'src/app/pathToYourModule/home.module#HomeModule'},
       {path: '**', component: NotFoundComponent}
     ];

I started the path from 'src' and dont forget to remove the '.ts' from the module path.