I'm trying to add a celery service to my django app. I've duplicated the django app and created a new config file railway.worker.json

{
  "$schema": "https://railway.com/railway.schema.json",
  "build": {
    "builder": "NIXPACKS",
    "nixpacksPlan": {
      "providers": ["python", "node"]
    }
  },
  "deploy": {
    "startCommand": "pipenv run celery -A stage_sidekick worker --loglevel=info --uid=nobody"
  }
}

However I get an error ModuleNotFoundError: No module named 'pkgutil' during the deploy step. I've tried many variations of config settings such as adding a build step to ensure pip/pipenv is installed, but nothing seems to work.

Project id: 51d489e5-fe6e-4c2b-bef5-68d1035698d4