@andyearnshaw what do you think?

@skv-headless the source code for this pkg is in src/, not in lib/ or dist/, those are the compiled version of the source for node and browser respectively, and this compilation is done with babel, and we don't want babel to look at the compiled files, that's why those two folders are ignored.

@skv-headless did you figure out the solution here?

I've added rm -f node_modules/intl/.babelrc to postinstall. But I'm not proud about it.

@caridy in RN environment, babel does look at node_modules. Here, package.json is having index.js as the main file which refers to the code in lib. So in RN env, lib is the src of truth. So ignoring lib breaks in RN environment.

I see two options here: 1) Either we npmignore the babelrc file or 2) we remove the ignore for lib. I think option 1 makes more sense.

it would be nice to not add a postinstall in my project for removing the babelrc. And thanks for the awesome lib. 👍

Option 1) makes sense, I don't even know why 2) is an option at all. caridy is saying the file is already transformed during build process, why can't babel handle this correctly? From the issue linked above, this looks to be a bug in react-native packager 0.42 and above.

Went with option 1), thanks everyone for the suggestions.

try this in React Native.

if (!global.Intl) {
  global.Intl = require('intl/lib/core')
}

But not work in Release Version.

Sadly...

@huhuanming we haven't release a new version yet, you will have to build from source to try this out today.

thank you.

@caridy can we get a new release?

Can we get a new npm version please.

Yes, please.
Until you publish a new version on npm, this fix does not 'exist'.

I code a React-Native (v0.44.2) project on node.js (v7.10.0) on an Ubuntu based OS.

I've encountered node_modules/intl/lib/core.js: Cannot read property 'tokens' of undefined exception too.

I tried adding the line of "postinstall": "rm -f node_modules/intl/.babelrc" in scripts block in packages.json.

Also I tried to remove and to add the line of "lib/*.js" in ignore block in node_modules/intl/.babelrc file.

And also I've tried to add this ignore block to my root .babelrc file like the below:

{
  "presets": ["react-native"],  
  "ignore": [
      "intl/dist/*.js",
      "intl/lib/*.js",
      "intl/locale-data/*.js"
  ]
}

However I couldn't overcome the issue. Is there any solution you know?

Loading dependency graph, done.
error: bundling: TypeError: Cannot read property 'tokens' of undefined
    at new Generator (/home/user/Projects/emsand/node_modules/babel-generator/lib/index.js:51:21)
    at exports.default (/home/user/Projects/emsand/node_modules/babel-generator/lib/index.js:19:13)
    at Object.transform (/home/user/Projects/emsand/node_modules/react-native/packager/transformer.js:110:20)
    at transformCode (/home/user/Projects/emsand/node_modules/react-native/packager/src/JSTransformer/worker/worker.js:91:31)
    at exports.transformAndExtractDependencies (/home/user/Projects/emsand/node_modules/react-native/packager/src/JSTransformer/worker/worker.js:148:3)
    at handle (/home/user/Projects/emsand/node_modules/worker-farm/lib/child/index.js:41:8)
    at process.<anonymous> (/home/user/Projects/emsand/node_modules/worker-farm/lib/child/index.js:47:3)
    at emitTwo (events.js:106:13)
    at process.emit (events.js:194:7)
TransformError: /home/efkan/Projects/emsand/node_modules/intl/lib/core.js: Cannot read property 'tokens' of undefined
Bundling `index.android.js`  87.6% (586/626), failed.

@efkan after deleting node_modules/intl/.babelrc did you restart the packager? Close the terminal and react-native run-android

@piuccio it works. Thank you a lot.