Error: 'distanceBetweenPoints' is not exported by node_modules/chart.js/helpers/helpers.cjs

[honzajavorek]

Hi, upgrading charts.js from 4.1.1 to 4.1.2 (see juniorguru/junior.guru#1046) causes my CI to fail on this:

[07:25:10] 'buildJS' errored after 11 s
[07:25:10] Error: 'distanceBetweenPoints' is not exported by node_modules/chart.js/helpers/helpers.cjs, imported by node_modules/chartjs-plugin-annotation/dist/chartjs-plugin-annotation.esm.js

I use rollup to build the JS, but the setup is pretty simple as I use just a few lines of extra JS on my site. I'm not sure what I can do about it. Please advise what other info would help to debug this issue, or how otherwise can I contribute to the solution.

[stockiNail]

Not sure that this is related to this plugin. The PR chartjs/Chart.js#11033 in Chart.js, went live with version 4.1.2, changed the export of helpers.

[honzajavorek]

From the line imported by node_modules/chartjs-plugin-annotation/dist/chartjs-plugin-annotation.esm.js in the error I assumed this plugin might need to be updated. Are you suggesting it's rather a regression in charts.js itself?

[stockiNail]

I'd like to say yes... Anyway a PR is already submitted in this plugin: #832 which should fix it.

[honzajavorek]

Awesome! That's fast 😳 ❤️

[stockiNail]

Thank you! Due to the fact that I'm not so expert on JS packaging, do you have the chance to test it locally, in your enviroment? just changing package.json in your node_modules for chartjs-plugin-annotation.

[honzajavorek]

1. npm i chart.js==4.1.2
2. copied contents of https://raw.githubusercontent.com/chartjs/chartjs-plugin-annotation/f26f4749632f1d51c9bb3de6a3c75c982ca5598b/package.json to node_modules/chartjs-plugin-annotation/package.json
3. ran my build, failed with the same error 😞
4. npm i chart.js@4.1.1
5. ran my build, passed just fine

[honzajavorek]

I use Gulp and my setup looks like this, if that makes any difference:

async function buildJS() {
  const bundle = await rollup({
    input: 'juniorguru/web/static/src/js/index.js',
    plugins: [resolve(), terser()],
  });
  return bundle.write({
    file: 'juniorguru/web/static/bundle.js',
    format: 'iife',
    sourcemap: isLocalDevelopment,
  });
}

If I need to make changes in the setup, I'm okay with it, but then 4.1.2 shouldn't be a patch release 😬

[stockiNail]

The PR has been applied. As soon as new patch version will be released, the issue should be solved.

[stockiNail]

@honzajavorek version 2.1.2 of the plugin has been released. Can you check if it's now working for you?

[honzajavorek]

After this:

npm i chartjs-plugin-annotation@2.1.2 chart.js@4.1.2

I'm getting the same error:

Error: 'distanceBetweenPoints' is not exported by node_modules/chart.js/helpers/helpers.cjs, imported by node_modules/chartjs-plugin-annotation/dist/chartjs-plugin-annotation.esm.js
    at error (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:198:30)
    at Module.error (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:12560:16)
    at Module.traceVariable (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:12919:29)
    at ModuleScope.findVariable (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:11571:39)
    at FunctionScope.findVariable (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:6503:38)
    at ChildScope.findVariable (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:6503:38)
    at ReturnValueScope.findVariable (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:6503:38)
    at ChildScope.findVariable (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:6503:38)
    at Identifier.bind (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:7570:40)
    at CallExpression.bind (/Users/honza/Projects/juniorguru/node_modules/rollup/dist/shared/rollup.js:5400:23)

I reported in #831 (comment) that the proposed solution doesn't work for me, but perhaps I wrote it in a confusing way (first failing with the upgraded version of chart.js, then verifying that the previous version of chart.js works).

[stockiNail]

Thank you! I'll have a look, more in deep to understand what's wrong.

[stockiNail]

@honzajavorek I have cloned your project locally and I was able to reproduce the issue (apologize for time that I needed).
To solve the issue, we should wait for new Chart.js release, where PR chartjs/Chart.js#11037 will be included.
Applying locally the PR on the package config files (in node_modules/chart.js folder), gulp can build without any issue.

[11:40:15] Using gulpfile ~\git\junior.guru\gulpfile.js
[11:40:15] Starting 'default'...
[11:40:15] Starting 'buildJS'...
[11:40:15] Starting 'buildImages'...
[11:40:15] Starting 'buildStories'...
[11:40:15] Starting 'copyScreenshots'...
[11:40:15] Starting 'buildFlaskCSS'...
[11:40:15] Starting 'copyIconFont'...
[11:40:15] Starting 'buildMkDocsCSS'...
[11:40:34] Finished 'buildFlaskCSS' after 18 s
[11:40:34] Finished 'buildMkDocsCSS' after 18 s
[11:40:34] Finished 'copyIconFont' after 18 s
[11:40:36] gulp-imagemin: Minified 0 images
[11:40:36] Finished 'buildStories' after 20 s
[11:40:40] Finished 'copyScreenshots' after 24 s
[11:40:40] gulp-imagemin: Minified 0 images
[11:40:40] Finished 'buildImages' after 25 s
[11:40:50] Finished 'buildJS' after 34 s //<--------- Ended correctly

[honzajavorek]

@stockiNail Wow, thank you! This is so much more than I'd expect ❤️ My project isn't exactly contributions-friendly (not yet), so thanks for going this far and trying it out like this. I'm fine waiting for next releases, I'm in no rush. Hopefully this helps anyone who could have a similar problem.

Click here for offtopic info about what I'm using this library for…

If you are curious, junior.guru is a small project where I'm trying to be as transparent as possible about its financial results. I have open stats. Your library helps me to have vertical lines in my charts so I can mark individual years or milestones.