Error running

[juancresc]

I'm using macOS Sierra 10.12.6, installed yarn from:

curl -o- -L https://yarnpkg.com/install.sh | bash

And I'm getting this output,

✗ ~/.yarn/bin/yarn
...
✗ ~/.yarn/bin/yarn start
yarn run v1.2.1
$ knit -- server
⌛  Webpack bundling assets for the first time...
⚡  Server running at http://localhost:8080
➾  Proxying /api to API running at http://localhost:5000
webpack built 56da26a0f3b3be2a917e in 915ms
Version: webpack 2.1.0-beta.22
Time: 915ms
        Asset    Size  Chunks             Chunk Names
    bundle.js  386 kB       0  [emitted]  bundle
bundle.js.map  471 kB       0  [emitted]  bundle

ERROR in ./modules/~/webpack_entry/index.js
Module build failed: SyntaxError: Unexpected token (7:2)

   5 | 
   6 | render(
>  7 |   <App />,
     |   ^
   8 |   document.getElementById(`root`)
   9 | )
  10 | 

 @ multi bundle
webpack: bundle is now VALID.