The requested module '../../refresh-fetch/lib/index.js' does not provide an export named 'fetchJSON'

[leegee]

I'm being told The requested module '../../refresh-fetch/lib/index.js' does not provide an export named 'fetchJSON' by refresh-fetch version 0.5.1 when Node 6.9.2 is calling:

import { configureRefreshFetch, fetchJSON } from 'refresh-fetch';

Any ideas?

[vlki]

Hello @leegee! I haven't encountered such an issue before, so no idea from top of my head. Could you post little bit more context of how are you trying to use refresh-fetch?

[leegee]

Thanks

import {configureRefreshFetch, fetchJSON} from 'refresh-fetch';

The requested module '../../refresh-fetch/lib/index.js' does not provide an export named 'fetchJSON'

Trying to get around that:

import * as refreshFetch from 'refresh-fetch';
const {configureRefreshFetch, fetchJSON} = refreshFetch;

exports is not defined

This is the refresh-fetch downloaded just now, Node 8.15.0 --- running via Mocha via web-component-tester, through latest Chrome on latest OSX.

[leegee]

Also....

[src 13:31:40] git clone https://github.com/vlki/refresh-fetch.git
Cloning into 'refresh-fetch'...
remote: Enumerating objects: 191, done.
remote: Total 191 (delta 0), reused 0 (delta 0), pack-reused 191
Receiving objects: 100% (191/191), 76.56 KiB | 423.00 KiB/s, done.
Resolving deltas: 100% (97/97), done.
[src 13:31:45] cd refresh-fetch/
[refresh-fetch 13:31:47] npm i
npm WARN deprecated babel-preset-es2015@6.24.1: 🙌  Thanks for using Babel: we recommend using babel-preset-env now: please read babeljs.io/env to update!
npm WARN deprecated circular-json@0.3.3: CircularJSON is in maintenance only, flatted is its successor.

> fsevents@1.2.7 install /Users/lee.goddard/src/refresh-fetch/node_modules/fsevents
> node install

node-pre-gyp WARN Using request for node-pre-gyp https download
[fsevents] Success: "/Users/lee.goddard/src/refresh-fetch/node_modules/fsevents/lib/binding/Release/node-v57-darwin-x64/fse.node" is installed via remote
npm WARN prepublish-on-install As of npm@5, `prepublish` scripts are deprecated.
npm WARN prepublish-on-install Use `prepare` for build steps and `prepublishOnly` for upload-only.
npm WARN prepublish-on-install See the deprecation note in `npm help scripts` for more information.

> refresh-fetch@0.5.1 prepublish /Users/lee.goddard/src/refresh-fetch
> npm run clean && npm run lint && npm test && npm run build

> refresh-fetch@0.5.1 clean /Users/lee.goddard/src/refresh-fetch
> rimraf lib dist coverage

> refresh-fetch@0.5.1 lint /Users/lee.goddard/src/refresh-fetch
> eslint src test

Cannot read property 'type' of undefined
TypeError: Cannot read property 'type' of undefined
    at isForInRef (/Users/lee.goddard/src/refresh-fetch/node_modules/eslint/lib/rules/no-unused-vars.js:406:24)
    at variable.references.some.ref (/Users/lee.goddard/src/refresh-fetch/node_modules/eslint/lib/rules/no-unused-vars.js:443:21)
    at Array.some (<anonymous>)
    at isUsedVariable (/Users/lee.goddard/src/refresh-fetch/node_modules/eslint/lib/rules/no-unused-vars.js:442:40)
    at collectUnusedVariables (/Users/lee.goddard/src/refresh-fetch/node_modules/eslint/lib/rules/no-unused-vars.js:565:26)
    at collectUnusedVariables (/Users/lee.goddard/src/refresh-fetch/node_modules/eslint/lib/rules/no-unused-vars.js:572:17)
    at Program:exit (/Users/lee.goddard/src/refresh-fetch/node_modules/eslint/lib/rules/no-unused-vars.js:617:36)
    at listeners.(anonymous function).forEach.listener (/Users/lee.goddard/src/refresh-fetch/node_modules/eslint/lib/util/safe-emitter.js:47:58)
    at Array.forEach (<anonymous>)
    at Object.emit (/Users/lee.goddard/src/refresh-fetch/node_modules/eslint/lib/util/safe-emitter.js:47:38)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! refresh-fetch@0.5.1 lint: `eslint src test`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the refresh-fetch@0.5.1 lint script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/lee.goddard/.npm/_logs/2019-01-22T12_32_13_556Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! refresh-fetch@0.5.1 prepublish: `npm run clean && npm run lint && npm test && npm run build`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the refresh-fetch@0.5.1 prepublish script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/lee.goddard/.npm/_logs/2019-01-22T12_32_13_664Z-debug.log
[refresh-fetch 13:32:13]

[vlki]

Regarding the latter, npm install fails, because I used yarn for this project and the lock file is therefore for yarn only right now.

[vlki]

Thanks for the info regarding the original issue. I will try refresh-fetch in web-components-tester later today to see what might be the problem

[leegee]

Thanks — I think it's just that WCT is trying to run transpiled CommonJS. Why it's trying to do that is another matter!

[vlki]

Hey @leegee, I spent some time with the issue today, but cannot reproduce it. I am able to use refresh-fetch both in Node.js v8 or Chrome without problems.

But from the error message exports is not defined it sounds like your environment is not expecting a CommonJS module. Why is that?

So at least I updated dependencies and rebuilt the code using the new Babel v7. Published as v0.6.0.

[leegee]

I'll open another ticket if I can reproduce the error, thanks for looking into it and updating Babel.