sp-dev-fx-webparts/tutorials/tutorial-getting-started/documentcardexample-webpart/config/package-solution.json

{
  "solution": {
    "name": "documentcardexample-webpart-client-side-solution",
    "id": "e3af5b6a-8335-4b99-85af-f06ef5d62490",
    "version": "1.0.0.0"
  },
  "paths": {
    "zippedPackage": "solution/documentcardexample-webpart.sppkg"
  }
}