EC
ERR_INVALID_PACKAGE_TARGET
Node.jsERRORCommonModule SystemHIGH confidence

The 'exports' field of a package.json contains an invalid target.

Production Risk

Low. This is a package configuration error that occurs at application startup, making it easy to detect before deployment.

What this means

This error indicates a problem within a dependency's `package.json` file. The `exports` field, which controls which files are accessible from a package, has an invalid value. For instance, a target path might not start with `./` or might try to reference a file outside the package directory.

Why it happens
  1. 1A package's `package.json` `exports` map contains a value that is not a relative path starting with `./`.
  2. 2A target path in the `exports` field attempts to traverse upwards out of the package directory.
  3. 3The `package.json` file is malformed, causing the `exports` value to be parsed incorrectly.
How to reproduce

This error occurs when Node.js parses a `package.json` file to resolve a module import and finds that a target mapping in the `exports` field is invalid according to the rules.

trigger — this will error
trigger — this will error
// This error is caused by a malformed package.json in a dependency.
// For example, if 'some-package/package.json' contains:
// { "exports": { ".": "/absolute/path/to/file.js" } }
try {
  require('some-package');
} catch (err) {
  console.error(err.code);
}

expected output

ERR_INVALID_PACKAGE_TARGET

Fix 1

Update the Dependency

WHEN The error is in a third-party package.

Update the Dependency
npm update some-package

Why this works

Check for a newer version of the package. The author has likely already fixed the invalid `package.json` file. If not, report the issue to them.

Fix 2

Correct Your Own package.json

WHEN The error is in your own project's `package.json` file.

Correct Your Own package.json
// In your package.json:
{
  "name": "my-package",
  "exports": {
    ".": "./index.js", // Correct: must be a relative path
    "./feature": "./feature.js"
  }
}

Why this works

Ensure all paths in the `exports` field values are valid relative paths that start with `./` and stay within the package directory.

Code examples
Triggerjs
// This error is caused by a malformed package.json in a dependency.
// For example, if 'some-package/package.json' contains:
// { "exports": { ".": "/absolute/path/to/file.js" } }
try {
  require('some-package');
} catch (err) {  // this triggers ERR_INVALID_PACKAGE_TARGET
Handle in try/catchjs
try {
  // operation that may throw ERR_INVALID_PACKAGE_TARGET
  riskyOperation()
} catch (err) {
  if (err.code === 'ERR_INVALID_PACKAGE_TARGET') {
    console.error('ERR_INVALID_PACKAGE_TARGET:', err.message)
  } else {
    throw err
  }
}
Defensive pattern to avoid itjs
// Validate inputs before calling the operation
function safe_err_invalid_package_target(...args) {
  // validate args here
  return performOperation(...args)
}
What not to do

✕

Same error in other languages
ImportErrorin Python→
Sources
Official documentation ↗

https://github.com/nodejs/node/blob/main/lib/internal/modules/esm/resolve.js

More information ↗

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