Injection issue with InjectionToken

I’m submitting a…

[ x] Bug report 

Current behavior

When I run this example, I get an exception in the console

TypeError: Cannot read property 'ngInjectableDef' of undefined
    at resolveNgModuleDep (vendor.js:39470)
    at NgModuleRef_.push../node_modules/@angular/core/fesm5/core.js.NgModuleRef_.get (vendor.js:40174)
    at inject (vendor.js:32520)
    at injectArgs (vendor.js:32551)
    at vendor.js:32608
    at _callFactory (vendor.js:39548)
    at _createProviderInstance (vendor.js:39506)
    at resolveNgModuleDep (vendor.js:39481)
    at NgModuleRef_.push../node_modules/@angular/core/fesm5/core.js.NgModuleRef_.get (vendor.js:40174)
    at resolveDep (vendor.js:40539)

Expected behavior

No exception should occur and injection should be made

Minimal reproduction of the problem with instructions

@Injectable({
  providedIn: 'root'
})
export class AppService {

  constructor(@Inject(APP_CONFIG) private config:Config) {
  }
}

export const APP_CONFIG = new InjectionToken<Config>
('app.config', {
  providedIn: 'root',
  factory: () => AppConfig
});

export interface Config {
  apiUrl: string;
}

export const AppConfig: Config = {
  apiUrl: 'http://localhost:8080/api/'
};

Environment

Angular version: 6.1.8
Browser:
- [x ] Chrome (desktop) version 69.0
 

[sergey-morenets]

Verified this issue on Angular 7.2.4. I still got an error but the error message is different:

TypeError: Cannot read property '__source' of undefined
    at StaticInjector.push../node_modules/@angular/core/fesm5/core.js.StaticInjector.get (core.js:8984)
    at resolveNgModuleDep (core.js:21119)
    at NgModuleRef_.push../node_modules/@angular/core/fesm5/core.js.NgModuleRef_.get (core.js:21808)
    at injectInjectorOnly (

[sergey-morenets]

Not reproduced any more with Angular9-rc.9