Could not find module "@babel/core", but it was listed in package.json. Run your package manager first.

[0x1af2aec8f957]

I upgraded parcel to 2.9.0 and encountered the following error:

yarn run v1.22.19
$ cross-env NODE_OPTIONS=--max-old-space-size=16384 parcel build ./public/index.html --no-cache --no-source-maps --log-level='error' --dist-dir='./build'
🚨 Build failed.

@parcel/package-manager: Could not find module "@babel/core", but it was listed in package.json. Run your package manager first.

  @WorkDir/package.json:38:5
    37 |   "devDependencies": {
  > 38 |     "@babel/core": "^7.22.0",
  >    |     ^^^^^^^^^^^^^ Defined here, but not installed
    39 |     "@babel/preset-env": "^7.22.0",
    40 |     "@parcel/config-default": "^2.9.0",

error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

The same configuration restricting the version to 2.8.0 can work normally.

My .parcelrc:

{
  "extends": "@parcel/config-default",
  "validators": {
    "*.{ts,tsx}": ["@parcel/validator-typescript"]
  },
  "resolvers": ["@parcel/resolver-glob", "..."],
  "transformers": {
    // "*.{js,mjs,jsx,cjs,ts,tsx}": [
    //   "@parcel/transformer-js",
    //   "@parcel/transformer-react-refresh-wrap"
    // ]
  }
}

Can anyone tell what happened? I made sure I have all dependencies installed and found.

[mischnic]

The underlying error is

Resolving: @babel/types
From: node_modules/@babel/core/lib/transformation/file/file.js
Result:{
  ...
  error: {
    type: 'JsonError',
    path: 'node_modules/@babel/types/lib/package.json',
    line: 1,
    column: 18,
    message: 'unknown variant `script`, expected one of `commonjs`, `module`, `json` at line 1 column 18'
  },
}

https://unpkg.com/browse/@babel/types@7.22.0/lib/package.json

[mellodev]

Following, as I have a similar issue with 2.9.0 and babel after upgrading my working 2.8.2 project:

@parcel/transformer-babel: Could not resolve module "@babel/types" from ".../node_modules/.pnpm/@babel+core@7.22.1/node_modules/@babel/core/lib/transformation/file/file.js"

[devongovett]

Looks like this was introduced in Babel 7.22 which was just released today as well. Opened babel/babel#15664

[nicolo-ribaudo]

Fixed in @babel/types@7.22.3 and @babel/core@7.22.1.

[mellodev]

Thank you @nicolo-ribaudo! Confirmed worked now with Parcel 2.9.0 and the following Babel deps (for my project requirements):

• "@babel/core": "7.22.1",
• "@babel/types": "7.22.3",
• "@babel/plugin-proposal-class-properties": "7.18.6",
• "@babel/plugin-proposal-object-rest-spread": "7.20.7",
• "@babel/plugin-transform-object-assign": "7.18.6",
• "@babel/preset-env": "7.22.2",
• "@babel/preset-react": "7.22.3",
• "@babel/preset-typescript": "7.21.5",