How to fix npm ERR! code EBUNDLEDINVALID npm ERR! bundledDependencies must be an array in npm

npmBEGINNERLOWUpdated Dec 2, 2025· 100 views

Bundled dependencies are malformed. Fix or remove invalid bundledDependencies entries before publishing.

Quick fix

Fixes npm ERR! code EBUNDLEDINVALID npm ERR! bundledDependencies must be an array

npm pack --dry-run
  1. Validate bundledDependencies format
  2. Remove or fix invalid entries
  3. Re-run npm pack or publish
npm — error
npm pack --dry-run
npm ERR! code EBUNDLEDINVALID
npm ERR! bundledDependencies must be an array

What this error means

EBUNDLEDINVALID occurs when bundledDependencies is not an array of valid package names, or bundle entries are missing from dependencies.

Typical symptoms

  • npm publish fails with EBUNDLEDINVALID
  • Bundled dependencies not listed correctly

Common causes

  1. bundledDependencies not an array
  2. Bundle name missing from dependencies list

How to fix "npm ERR! code EBUNDLEDINVALID npm ERR! bundledDependencies must be an array"

1Validate bundledDependencies format

Ensure bundledDependencies is an array of strings and each is listed in dependencies.

2Remove or fix invalid entries

Delete bad entries or add proper dependency versions.

3Re-run npm pack or publish

Verify the tarball before publish:

bash
npm pack --dry-run

Then publish once the bundle is correct.

Advanced notes

Bundling is rare; prefer normal dependencies unless you have a specific offline/install reason.

Frequently asked questions

What does "npm ERR! code EBUNDLEDINVALID npm ERR! bundledDependencies must be an" mean?
EBUNDLEDINVALID occurs when bundledDependencies is not an array of valid package names, or bundle entries are missing from dependencies.
How do I fix "npm ERR! code EBUNDLEDINVALID npm ERR! bundledDependencies must be an"?
Bundled dependencies are malformed. Fix or remove invalid bundledDependencies entries before publishing.
What causes "npm ERR! code EBUNDLEDINVALID npm ERR! bundledDependencies must be an"?
bundledDependencies not an array Bundle name missing from dependencies list
Is the "npm ERR! code EBUNDLEDINVALID npm ERR! bundledDependencies must be an" error serious?
It is a low-severity error — more of a blocker than a risk. The steps above resolve it.

Official resources & further reading