React Packager crashes because it doesn't understand the rest spread operator.

[sonthonaxrk]

The latest commit a803e32 fails to build any project.

[rollo@Rollos-iMac my_project]$ npm start

> my_project@0.0.1 start /Users/rollo/Developer/my_project
> node_modules/react-native/packager/packager.sh

/Users/rollo/Developer/my_project/node_modules/react-native/packager/react-packager/src/FileWatcher/index.js:51
function(...args){return _this.emit.apply(_this,['all'].concat(args));});});
         ^^^
SyntaxError: Unexpected token ...
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:413:25)
    at normalLoader (/Users/rollo/Developer/my_project/node_modules/react-native/node_modules/babel-core/lib/api/register/node.js:199:5)
    at Object.require.extensions.(anonymous function) [as .js] (/Users/rollo/Developer/my_project/node_modules/react-native/node_modules/babel-core/lib/api/register/node.js:216:7)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)
    at Module.require (module.js:365:17)
    at require (module.js:384:17)
    at Object.<anonymous> (/Users/rollo/Developer/my_project/node_modules/react-native/packager/react-packager/src/Server/index.js:14:19)
    at Module._compile (module.js:430:26)

This problem arose at this commit

1109ce3

The packager will run if I change the .babelrc file https://github.com/facebook/react-native/blob/master/packager/react-packager/.babelrc

And change es6.parameters.rest to es6.parameters

The packager then runs but, it fails to transpile any rest spread operators meaning my app crashes with a syntax error in warning.js,

SyntaxError: Unexpected token '...'. Expected a parameter pattern or a ')' in a parameter list.

[dsibiski]

@rollokb I'm having the same issue on a fresh app. This seems to be something that is being worked on in #1753

[dsibiski]

It seems like force updating babel-core works: evansolomon@2940387#diff-b9cfc7f2cdf78a7f4b91a753d10865a2R50

I'm sure this will be merged into master soon.

[dsibiski]

It seems like this is a problem with Babel and they may have fixed it in their development branch: babel/babel@57d2323

[sonthonaxrk]

Thanks @dsibiski, that fixed the problem.