Error [ERR_REQUIRE_ESM]: Must use import to load ES Module

[kutny]

Hi, I'm kind of a typescript beginner also coming from the PHP/Symfony world.

Got the following error:

Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: /home/jirka/projects/page-scraper/src/openai/ClientFactory.ts
require() of ES modules is not supported.
require() of /home/jirka/projects/page-scraper/src/openai/ClientFactory.ts from /home/jirka/projects/page-scraper/node_modules/node-dependency-injection/dist/lib/Loader/FileLoader.js is an ES module file as it is a .ts file whose nearest parent package.json contains "type": "module" which defines all .ts files in that package scope as ES modules.
Instead change the requiring code to use import(), or remove "type": "module" from /home/jirka/projects/page-scraper/package.json.

I have "type": "module" set in package.json

My tsconfig.json

{
  // source https://github.com/wclr/ts-node-dev/issues/314
  "ts-node": {
    "transpileOnly": true,
    "esm": true,
  },
  "compilerOptions": {
    "module": "ESNext",
    "target": "ESNext",
    "rootDir": "src",
    "strict": true,
    "sourceMap": true,
    "moduleResolution": "node",
    "esModuleInterop": true,
  },
  "include": ["src/**/*.ts"],
  "exclude": ["node_modules"]
}

services.yaml

services:

  test_service:
    class: "./openai/ClientFactory"
    arguments:
      - "some_key"

Typescript: 5.0.3

running a .ts script using nodemon --experimental-specifier-resolution=node ./src/index.ts

Thanks for your help

[zazoomauro]

This is an issue related with Ts and NodeJs . Not with ndi itself.
seems like your are not using import but require or something like this.