Articles/JavaScript

ERR_UNHANDLED_REJECTION in Node.js — What It Means and How to Fix It

What the Node.js/npm error ERR_UNHANDLED_REJECTION means and how to resolve it.

Published October 26, 2026

ERR_UNHANDLED_REJECTION the newer, stricter form of unhandled Promise rejection that crashes the Node.js process entirely.

Key points

  • Reflects Node.js's shift toward treating unhandled rejections as seriously as uncaught exceptions
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