How can I fix this error?: No such module "node:fs". I'm following the CF docs, what I'm doing wrong?

[plustra]

Hi community!

I'm using NodeJS v22.0.0, Hono JS and Cloudflare Workers and I'm having an issue with "fs" and "path" modules:

import { Hono } from 'hono'
import { serveStatic } from 'hono/cloudflare-workers'
import fs from 'node:fs'
import path from 'node:path'

But when I run wrangler dev src/index.ts it raise an error:

X [ERROR] service core:user:example: Uncaught Error: No such module "node:fs".

    imported from "index.js"

X [ERROR] MiniflareCoreError [ERR_RUNTIME_FAILURE]: The Workers runtime failed to start. There is likely additional logging output above.

Reading the docs I need to setup my wrangler.toml to be compatible with Node adding compatibility_flags = [ "nodejs_compat" ] to the file, but I already have it:

name = "example"
main = "src/index.ts"
compatibility_date = "2023-12-01"
compatibility_flags = [ "nodejs_compat" ]

My tsconfig.json is configured to recognize NodeJS and Cloudflare Workers types, that's why VSCode doesn't recognize any error, it only shows up when running the wrangler dev src/index.ts:

{
    "compilerOptions": {
        "target": "ESNext",
        "module": "ESNext",
        "moduleResolution": "Bundler",
        "strict": true,
        "skipLibCheck": true,
        "lib": ["ESNext"],
        "types": ["@types/node", "@cloudflare/workers-types"],
        "jsx": "react-jsx",
        "jsxImportSource": "hono/jsx"
    }
}

[treeder]

You should probably try to avoid using node libs. What are you trying to do?