Custom Android application with Angular import crashes at startup

[dennis-montana]

Describe the bug
We have an app that uses a custom Android application which imports a file that imports InjectionToken from @angular/core. When we run the app normally all goes well, when we run it with Webpack it crashes on startup.
The runtime error we get:

An uncaught Exception occurred on "main" thread.
java.lang.RuntimeException: Unable to create application com.tns.MyCustomApplication: com.tns.NativeScriptException: JavaScript object for Java ID 0 not found.
Attempting to call method onCreate

Sample project
I've created a sample project:
https://github.com/dennis-montana/webpack-custom-application-issue

If you remove line 1 and 3 with the InjectionToken from my-config.ts the app runs as expected with Webpack.

To Reproduce

1. Create a simple NativeScript app
2. Add a custom Android application
3. Import InjectionToken from @angular/core
4. Run with tns run android --bundle

Environment
Provide version numbers for the following components:

• CLI: 4.2.3
• Cross-platform modules: tns-core-modules@4.2.1
• Android Runtime: 4.2.0
• iOS Runtime: 4.2.0
• Plugin(s):
  "@angular/cli": "6.2.3",
  "@angular/common": "6.1.8",
  "@angular/compiler": "6.1.8",
  "@angular/core": "6.1.8",
  "@angular/forms": "6.1.8",
  "@angular/http": "6.1.8",
  "@angular/platform-browser": "6.1.8",
  "@angular/platform-browser-dynamic": "6.1.8",
  "@angular/router": "6.1.8",
  "nativescript-angular": "6.1.0",
  "nativescript-theme-core": "~1.0.4",
  "tns-core-modules": "~4.2.0",
  "tns-platform-declarations": "^4.2.1",
  "rxjs": "6.3.2"
• Node.js: 6.10.2

[bagnos]

I have the same issue, Did you resolve?

[dennis-montana]

We did not find a solution. For now we created a workaround by not using InjectionToken in our custom application.