Parcel: Cannot resolve dependency 'core-js/modules/es6.array.copy-within'

[fnick851]

🐛 bug report

Parcel CLI cannot resolve the core-js@3's array module.
Seems like it is looking for the wrong module. It is looking for "core-js/modules/es6.array.copy-within", while I have "core-js/modules/es.array.copy-within" in my "node_modules".

🎛 Configuration (.babelrc, package.json, cli command)

package.json:

{
    "name": "parcel_test",
    "version": "1.0.0",
    "description": "",
    "main": "index.js",
    "scripts": {
        "dev": "parcel watch src/app.html -d app --public-url .",
        "build": "parcel build src/app.html -d app --public-url . --no-content-hash"
    },
    "keywords": [],
    "author": "",
    "license": "ISC",
    "dependencies": {
        "core-js": "^3.1.4",
        "vue": "^2.6.10"
    },
    "devDependencies": {
        "parcel-bundler": "^1.12.3",
        "@babel/core": "^7.5.5",
        "@vue/component-compiler-utils": "^3.0.0",
        "vue-template-compiler": "^2.6.10",
        "vue-hot-reload-api": "^2.3.3"
    }
}

CLI command:
parcel build src/app.html -d app --public-url . --no-content-hash

I don't have a babel config.

🤔 Expected Behavior

Should compile

😯 Current Behavior

parcel_test/src/index.js: Cannot resolve dependency 'core-js/modules/es6.array.find-index'
    at Resolver.resolve (/Users/hsong/workspace/JS/parcel_test/node_modules/parcel-bundler/src/Resolver.js:71:17)
    at async Bundler.resolveAsset (/Users/hsong/workspace/JS/parcel_test/node_modules/parcel-bundler/src/Bundler.js:433:18)
    at async Bundler.resolveDep (/Users/hsong/workspace/JS/parcel_test/node_modules/parcel-bundler/src/Bundler.js:484:14)
    at async /Users/hsong/workspace/JS/parcel_test/node_modules/parcel-bundler/src/Bundler.js:608:26
    at async Promise.all (index 4)
    at async Bundler.loadAsset (/Users/hsong/workspace/JS/parcel_test/node_modules/parcel-bundler/src/Bundler.js:599:21)
    at async /Users/hsong/workspace/JS/parcel_test/node_modules/parcel-bundler/src/Bundler.js:610:13
    at async Promise.all (index 0)
    at async Bundler.loadAsset (/Users/hsong/workspace/JS/parcel_test/node_modules/parcel-bundler/src/Bundler.js:599:21)
    at async Bundler.processAsset (/Users/hsong/workspace/JS/parcel_test/node_modules/parcel-bundler/src/Bundler.js:557:5)
    at async PromiseQueue._runJob (/Users/hsong/workspace/JS/parcel_test/node_modules/parcel-bundler/src/utils/PromiseQueue.js:48:7)

💁 Possible Solution

Workaround: use @babel/polyfill or core-js@2 instead.

🔦 Context

Build apps.

💻 Code Sample

N/A

🌍 Your Environment

| Software | Version(s) |
| ---------------- | ---------- |
| Parcel | parcel-bundler 1.12.3
| Node | 12.6.0
| npm/Yarn | 6.10.2
| Operating System | macOS Mojave 10.14.6

[gterras]

Hi,

any workaround for this issue ?

Thanks

[fnick851]

Hi,

any workaround for this issue ?

Thanks

The workaround I am using is to install and use @babel/polyfill or core-js@2 instead.

[NikhilVerma]

@fnick851 Use import 'core-js/stable'; instead.

See: https://babeljs.io/docs/en/babel-polyfill

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 14 days if no further activity occurs.

[babak-bekhrad]

Hi, you can use this version of core-js for fixing that problem.
yarn add [email protected]