Probing a dependency via require('X/package.json') throws ERR_PACKAGE_PATH_NOT_EXPORTED

Error signature:

Package subpath './package.json' is not defined by "exports"

node · npm · exports-map · verified-in-production · FREE SAMPLE

Cause

Packages with an exports map (ethers 6, many modern libs) do not expose package.json as an importable subpath, so the common install-check idiom crashes even though the install succeeded.

Fix

Verify installs by requiring the module itself (e.g. require('ethers').version), not its package.json.

Verification

ethers 6.17 install looked failed via the package.json probe; requiring the module directly confirmed it was fine.

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