[V2] Parcel could not build sub-module in node_child.fork

[zcmgyu]

🐛 bug report

🎛 Configuration (.babelrc, package.json, cli command)

🤔 Expected Behavior

child.js module is built in a separate file

😯 Current Behavior

child.js is not built

💁 Possible Solution

🔦 Context

I call the child.js process in a fork, but when to build with Parcel that child.js file is not found because it was not built.

💻 Code Sample

// index.js
const { fork } = require('child_process');

const forked = fork('child.js');

forked.on('message', (msg) => {
  console.log('Message from child', msg);
});

forked.send({ hello: 'world' });

// child.js
process.on('message', (msg) => {
  console.log('Message from parent:', msg);
});

let counter = 0;

setInterval(() => {
  process.send({ counter: counter++ });
}, 1000);

// package.json
{
  "name": "parcel-example",
  "version": "1.0.0",
  "license": "MIT",
  "main": "build/index.js",
  "scripts": {
    "build1": "PARCEL_WORKERS=0 parcel build index.js",
  },
  "dependencies": {
    "parcel": "^2.0.0-alpha.3.2"
  }
}

🌍 Your Environment

Software	Version(s)
Parcel	^2.0.0-alpha.3.2
Node	v12.16.0
npm/Yarn	1.22.0
Operating System	macOS 10.15.3

[Kali95739]

I try to bundle this but I get fork is not a function any help @zcmgyu

[Kali95739]

I believe its my babelrc