oven-sh/bun

Error when importing ```findPackageJSON``` method from ```node:module```

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#23898 opened on Oct 21, 2025

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 (10 comments) (3 reactions) (0 assignees)Rust (90,348 stars) (4,486 forks)batch import
bugconfirmed buggood first issuenode:module

Description

What version of Bun is running?

1.3.0+b0a6feca5

What platform is your computer?

Linux 6.8.0-85-generic x86_64 x86_64

What steps can reproduce the bug?

  1. create a file test.mjs with the following content:
import { findPackageJSON } from 'node:module';

findPackageJSON(import.meta.resolve('lodash'));
  1. run it like bun test.mjs

What is the expected behavior?

It should give no output, since the above does not throw a SyntaxError in Node.js.

What do you see instead?

SyntaxError: Export named 'findPackageJSON' not found in module 'node:module'.
      at loadAndEvaluateModule (2:1)

Additional information

The method findPackageJSON is not tied to any missing feature listed in bun documentation, in regards of node:module.

Contributor guide

Tech stack
javascriptnodejs
Domain
backendapi
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic understanding of Node.js module systemFamiliarity with Bun source code
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35
Research direction
Examine Bun's source code to locate the definition of the `node:module` module exports. Specifically, search for where other exports like `Module` or `createRequire` are defined. The `findPackageJSON` function likely needs to be added to the list of exports in the module's binding file. Look for files like `src/js/node/module.js` or relevant C++ or Zig files that handle Node.js module compatibility. Check if the function already exists internally and just needs to be exposed.