Fix: ERR_PACKAGE_PATH_NOT_EXPORTED error

The ‘ERR_PACKAGE_PATH_NOT_EXPORTED’ error occurs when Node.js cannot access a specific path within a package due to missing or incorrectly configured exports in the package’s package.json file.

How the Error Happens

❌ Error Scenario:

// ❌ This causes the error
import something from 'package/dist/utils'; // ❌ Path not exported
// Error: ERR_PACKAGE_PATH_NOT_EXPORTED

✅ Quick Fix - Resolve Package Export Issues

Solution 1: Check Package Exports Field

// ✅ In package.json, ensure exports are properly defined
{
  "name": "my-package",
  "exports": {
    ".": {
      "import": "./dist/index.js",
      "require": "./dist/index.cjs"
    },
    "./utils": {
      "import": "./dist/utils.js",
      "require": "./dist/utils.cjs"
    }
  }
}

Solution 2: Use Correct Import Path

// ❌ Wrong import path
import { helper } from 'some-package/dist/helper.js'; // ❌ Not exported

// ✅ Check package.json for correct export
import { helper } from 'some-package/helper'; // ✅ If properly exported
// OR
import { helper } from 'some-package'; // ✅ If available in main export

Solution 3: Use Subpath Exports

// ✅ Package.json with proper subpath exports
{
  "name": "my-package",
  "exports": {
    ".": "./index.js",
    "./helpers": "./helpers.js",
    "./utils/*": "./utils/*.js",
    "./legacy": {
      "require": "./legacy.js",
      "import": "./legacy.mjs"
    }
  }
}

Solution 4: Fallback to Main Package Import

// ❌ If subpath not available, import main package
// import specificUtil from 'package/dist/specific-util'; // ❌ May fail

// ✅ Import main package and access what you need
import pkg from 'package';
const { specificUtil } = pkg.helpers; // ✅ Access via main export