An in-range update of babel7 is breaking the build 🚨

There have been updates to the babel7 monorepo:

• • The devDependency @babel/core was updated from 7.3.4 to 7.4.0.

• The dependency @babel/generator was updated from 7.3.4 to 7.4.0.
• The dependency @babel/plugin-transform-modules-commonjs was updated from 7.2.0 to 7.4.0.
• The devDependency @babel/preset-env was updated from 7.4.0 to 7.4.1.
• The dependency @babel/register was updated from 7.0.0 to 7.4.0.

🚨 View failing branch.

This version is covered by your current version range and after updating it in your project the build failed.

This monorepo update includes releases of one or more dependencies which all belong to the babel7 group definition.

babel7 is a direct dependency of this project, and it is very likely causing it to break. If other packages depend on yours, this update is probably also breaking those in turn.

Status Details

• ❌ ci/circleci: install-dependencies: Your tests failed on CircleCI (Details).

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Your Greenkeeper Bot 🌴

[deklanw]

@kryops That worked for me although I’m now getting this upon installing new packages

warning Pattern ["core-js@^3.0.0"] is trying to unpack in the same destination "C:\\Users\\deklan\\AppData\\Local\\Yarn\\Cache\\v4\\npm-core-js3-3.1.3-95700bca5f248f5f78c0ec63e784eca663ec4138\\node_modules\\core-js3" as pattern ["core-js3@npm:core-js@latest"]. This could result in non-deterministic behavior, skipping.

[kryops]

Here’s a workaround to use core-js@3 in a yarn+webpack project:

1. In your package.json, leave the core-js dependency at version 2, but add an alias dependency for version 3:

"core-js": "^2.6.1",
"core-js3": "npm:core-js@^3.0.0",

1. In your webpack configuration, add the corresponding alias:

resolve: {
  alias: {
    'core-js': 'core-js3',
  },
},

1. In your Babel configuration, set corejs: 3 in the options for @babel/preset-env

This way, your webpack build will use core-js 3, while the linaria loader still gets version 2 (which it should really add as a dependency 😉)