title: Cant start react app with npm start
body: <p>I have problem with react app. I cloned it from git and run comands npm install and npm start and I got this error.</p>
  
  <pre><code>SyntaxError: Unexpected token {
  at exports.runInThisContext (vm.js:53:16)
  at Module._compile (module.js:373:25)
  at Object.Module._extensions..js (module.js:416:10)
  at Module.load (module.js:343:32)
  at Function.Module._load (module.js:300:12)
  at Function.Module.runMain (module.js:441:10)
  at startup (node.js:140:18)
  at node.js:1043:3
  npm ERR! code ELIFECYCLE
  npm ERR! errno 1
  npm ERR! front-end-react@0.1.0 build: `react-scripts build`
  npm ERR! Exit status 1
  npm ERR! 
  npm ERR! Failed at the front-end-react@0.1.0 build script.
  npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
  
  npm ERR! A complete log of this run can be found in:
  npm ERR!     /home/adeda/.npm/_logs/2017-07-28T10_14_54_951Z-debug.log
  </code></pre>