---
title: INTERNAL_UNARCHIVE_FAILED
product: vercel
url: /docs/errors/INTERNAL_UNARCHIVE_FAILED
canonical_url: "https://vercel.com/docs/errors/INTERNAL_UNARCHIVE_FAILED"
last_updated: 2026-06-25
type: reference
prerequisites:
  []
related:
  - /docs/functions/limitations
summary: Unarchiving of the deployment or resource failed. This is an internal error.
install_vercel_plugin: npx plugins add vercel/vercel-plugin
---

# INTERNAL_UNARCHIVE_FAILED

The `INTERNAL_UNARCHIVE_FAILED` error typically occurs when the platform encounters a problem trying to extract your deployment's archive. This issue often can be related to one of the following:

- The size of your deployment bundle for Vercel functions exceeds the limit. For Vercel functions, see the [bundle size limits](/docs/functions/limitations#bundle-size-limits)

**Error Code:** `500`

**Name:** Internal Server Error

## Troubleshoot

To troubleshoot this error, follow these steps:

- **Check your project files**: Check for any files or directories that have been unnecessarily included in the deployment. Removing unnecessary files or directories can help reduce the size of your deployment
- **Check bundle size**: Looking into your `includeFiles` and `excludeFiles` configuration to specify items affecting the function size. See [bundle size limits](/docs/functions/limitations#bundle-size-limits)


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