sp-dev-fx-webparts/samples/react-rxjs-event-emitter/config/package-solution.json

{
  "solution": {
    "name": "react-rxjs-event-emitter-client-side-solution",
    "id": "323ec3b8-b5de-4184-99a6-7e0f9c276412",
    "version": "1.0.0.0",
    "skipFeatureDeployment": false
  },
  "paths": {
    "zippedPackage": "solution/react-rxjs-event-emitter.sppkg"
  }
}