title: ERROR in bundle.js from UglifyJs SyntaxError: Unexpected token: name (x)
body: <p>I have my app made with Reactjs.</p>
  
  <p>I'm gettint this error when I try to run <code>npm run-script build</code>:</p>
  
  <pre><code>ERROR in bundle.js from UglifyJs
  SyntaxError: Unexpected token: name (x)  [./react/stores/UserStore.js:52,20]
  
  ERROR in bundle.js from UglifyJs
  SyntaxError: Unexpected token: name (x)  [./react/stores/UserStore.js:52,20]
  </code></pre>
  
  <p>The error is thrown twice. And the line of the file that is poiting is commented!
  And now I try without those lines and I'm still getting the same error.
  But this is the first time that I have this error, don't know why, and i haven't touched that file in weeks...</p>
  
  <p>Any idea?</p>