sp-dev-fx-webparts/tutorials/tutorial-migrate-fullcalendar/01-migrated-sewp-to-spfx/config/package-solution.json

{
  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/package-solution.schema.json",
  "solution": {
    "name": "fullcalendar-taskscalendar-client-side-solution",
    "id": "c8f6ee3a-f24a-4b6b-b1bf-ce7121f65205",
    "version": "1.0.0.0",
    "includeClientSideAssets": true,
    "isDomainIsolated": false
  },
  "paths": {
    "zippedPackage": "solution/fullcalendar-taskscalendar.sppkg"
  }
}