babel: @babel/plugin-proposal-object-rest-spread not being detected at beta.46

Babel/Babylon Configuration (.babelrc, package.json, cli command)

.babelrc

{
  "presets": [
    ["@babel/env", {
      "targets": { "node": "6.11.5" }
    }]
  ],
  "plugins": ["@babel/plugin-proposal-object-rest-spread"]
}

CLI Command

babel 'functions/src' --out-dir 'functions/bundle' --copy-files --ignore 'functions/src/node_modules'

Expected Behavior

Files are correctly built, as it did with beta.44

Current Behavior

With beta.46, following error arises:

Error: SyntaxError: functions/src/common/getLocations.js: Support for the experimental syntax 'objectRestSpread' isn't currently enabled (77:19):

  75 |         if (key === 'viewport'){
  76 |           const { northeast, southwest } = geometry.viewport;
> 77 |           return {...prev, bounds : {
     |                   ^
  78 |             ne : {
  79 |               lat : northeast.lat,
  80 |               lng : northeast.lng

Add @babel/plugin-proposal-object-rest-spread (https://git.io/vb4Ss) to the 'plugins' section of your Babel config to enable transformation.
    at /Users/karlas/project/node_modules/@babel/cli/lib/babel/dir.js:185:22
    at /Users/karlas/project/node_modules/@babel/cli/lib/babel/dir.js:148:23
    at /Users/karlas/project/node_modules/@babel/cli/lib/babel/dir.js:120:23
    at /Users/karlas/project/node_modules/@babel/cli/lib/babel/dir.js:82:23
    at /Users/karlas/project/node_modules/@babel/cli/lib/babel/util.js:126:16
    at runAsync (/Users/karlas/project/node_modules/@babel/core/lib/transformation/index.js:37:12)
    at /Users/karlas/project/node_modules/@babel/core/lib/transform-file.js:56:36
    at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:511:3)

Possible Solution

Can’t help…

Context

Just transpiling about 20 files to be used on Firebase Functions

Your Environment

software	version(s)
Babel	7.0.0-beta.46
node	8.11.1
npm	5.6.0
yarn	1.6.0
Operating System	macOS High Sierra

About this issue

Original URL
State: closed
Created 6 years ago
Reactions: 10
Comments: 15 (3 by maintainers)

Commits related to this issue

Fix Babel config loading See: https://github.com/babel/babel/issues/7879 — committed to serverless/components by pmuens 6 years ago
Fix Babel config loading See: https://github.com/babel/babel/issues/7879 — committed to serverless/components by pmuens 6 years ago

Most upvoted comments

.babelrc.js in prj root worked until beta.44, but doesn’t in 45 and above

+16

rifler on Jun 1, 2018

Mmm i can´t get it work. What i made:

Rename functions/src/.babelrcto functions/src/babel.config.js
Add the module.exports to this file, resulting:

module.exports = {
  "presets": [
    ["@babel/env", {
      "targets": { "node": "6.11.5" }
    }]
  ],
  "plugins": ["@babel/plugin-proposal-object-rest-spread"]
}

Am I doing something wrong?

+10

karlas on May 8, 2018

oh… why babel.config.js , looks so bad.

geminiyellow on Aug 30, 2018

2 hours wasted pulling my hair out with this one. This should probably be in big bold letters at the head of the repo 🤣 It’s going to trip a lot of people up. Renaming to babel.config.js and exporting works fine.

JamesTheHacker on Sep 9, 2018

Can you try to rename babel.config.js and module.export the configuration? We changed how config loading works and it is causing a bunch of problems.

nicolo-ribaudo on May 7, 2018

Same for me, it was a lot of pain for me to upgrade babel version and make everything work. After a lot of searches, I renamed .babelrc to babel.config.js et voila !

{
  "devDependencies": {
    "@babel/cli": "^7.1.0",
    "@babel/core": "^7.1.0",
    "@babel/plugin-proposal-object-rest-spread": "^7.0.0",
    "@babel/plugin-transform-async-to-generator": "^7.1.0",
    "@babel/preset-env": "^7.1.0",
    "babel-loader": "^8.0.2"
  }
}

Sin360 on Sep 19, 2018