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ERR_PACKAGE_MAP_EXTERNAL_FILE

package map external file

What does this code mean?

Code ERR_PACKAGE_MAP_EXTERNAL_FILE · An issue reported by Node.js.

Official explanation · Original text

A module attempted to resolve a bare specifier using the package map, but the importing file is not located within any package defined in the map. To fix this error, ensure the importing file is inside one of the package directories listed in the package map, or add a new package entry whose url covers the importing file.

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Errors | Node.js v26.13.1 Documentation ↗

Creator: Node.js contributors; Joyent, Inc. and other Node contributors
License: MIT License (Node.js documentation)
Checked on: 2026-11-12

Modifications: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source details · Original licenses and notices