Module "async_hooks" (Node.js built-in) is not available in the browser

[riascho]

Hi all, I am a beginner and a bit stuck - so hoping for kind help 🙏

Why am I still getting this error when running npm start --polyfill-node

> [email protected] start
> snowpack dev --polyfill-node

[09:38:42] [snowpack] Welcome to Snowpack! Because this is your first time running
this project, Snowpack needs to prepare your dependencies. This is a one-time step
and the results will be cached for the lifetime of your project. Please wait...

[09:38:42] [esinstall:raw-body] /Users/ria/projects/PersonalBudget_Codecademy/node_modules/raw-body/index.js
   Module "async_hooks" (Node.js built-in) is not available in the browser. Run Snowpack with --polyfill-node to fix.

This is my snowpack.config

/** @type {import("snowpack").SnowpackUserConfig } */
export default {
  mount: {
    public: { url: '/', static: true },
    src: { url: '/dist' },
  },
  plugins: [
    [
      '@snowpack/plugin-typescript',
      {
        /* Yarn PnP workaround: see https://www.npmjs.com/package/@snowpack/plugin-typescript */
        ...(process.versions.pnp ? { tsc: 'yarn pnpify tsc' } : {}),
      },
    ],
  ],
  routes: [
    /* Enable an SPA Fallback in development: */
    // {"match": "routes", "src": ".*", "dest": "/index.html"},
  ],
  optimize: {
    /* Example: Bundle your final build: */
    // "bundle": true,
  },
  packageOptions: {
    /* ... */
  },
  devOptions: {
    /* ... */
  },
  buildOptions: {
    /* ... */
  },
};

and my package.json

{
  "scripts": {
    "start": "snowpack dev --polyfill-node",
    "build": "snowpack build",
    "test": "echo \"This template does not include a test runner by default.\" && exit 1",
    "format": "prettier --write \"src/**/*.{ts,js}\"",
    "lint": "prettier --check \"src/**/*.{ts,js}\""
  },
  "dependencies": {
    "express": "^4.21.1",
    "tsc": "^2.0.4"
  },
  "devDependencies": {
    "@snowpack/plugin-typescript": "^1.2.1",
    "@types/express": "^5.0.0",
    "@types/node": "^22.8.6",
    "@types/snowpack-env": "^2.3.3",
    "prettier": "^2.2.1",
    "snowpack": "^3.3.7",
    "typescript": "^4.2.4"
  }
}