sp-dev-fx-webparts/samples/knockout-dependent-properties/config/package-solution.json

{
  "solution": {
    "name": "dep-props-custom-class-client-side-solution",
    "id": "c3bedf24-4177-4861-8c30-a1c67c499eae",
    "version": "1.0.0.1"
  },
  "paths": {
    "zippedPackage": "solution/dep-props-custom-class.spapp"
  }
}