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    Lab 7.1 ERR_UNSUPPORTED_ESM_URL_SCHEME

    Posts: 4
    in LFW211 Class Forum

    When execting npm test in Lab 7.1 on WIndows 11 with Node v16.14.0 installed I get the following error:

    1. Error [ERR_UNSUPPORTED_ESM_URL_SCHEME]: Only file and data URLs are supported by the default ESM loader. On Windows, absolute paths must be valid file:// URLs. Received protocol 'f:'
    2.     at new NodeError (node:internal/errors:371:5)
    3.     at throwIfUnsupportedURLProtocol (node:internal/modules/esm/resolve:1033:11)
    4.     at defaultResolve (node:internal/modules/esm/resolve:1103:3)
    5.     at ESMLoader.resolve (node:internal/modules/esm/loader:530:30)
    6.     at ESMLoader.getModuleJob (node:internal/modules/esm/loader:251:18)
    7.     at ESMLoader.import (node:internal/modules/esm/loader:332:22)
    8.     at importModuleDynamically (node:internal/modules/esm/translators:106:35)
    9.     at importModuleDynamicallyCallback (node:internal/process/esm_loader:35:14)
    10.     at file:///F:/_jsnad/labs/ch-7/labs-1/test.mjs:4:39

    Comments

    • Posts: 4

      I fixed the test by slightly changing the module loading according to your own tutorials in the chapter ;)
      Adding pathToFileURL

      1. import { pathToFileURL } from 'url'
      2. import { createRequire } from 'module'
      3. import assert from 'assert'
      4. const { resolve } = createRequire(import.meta.url)
      5. const { default: add } = await import(pathToFileURL(resolve('.')).toString())
      6.  
      7. assert(typeof add === 'function', 'function exported')
      8.  
      9. assert(add(15, 7) + add(11, 9) === 42, 'correct function exported')
      10.  
      11. console.log('passed!')
    • Posts: 160

      thanks @cscharr nicely done! code is being updated

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