title: React native error unsupported file type when start packager
body: <p>I got this issue when deploy react-native app to android simulator(I'm using genymotion).</p>
  
  <p>I deleted and pastes some new png images to the directories under "android\app\src\main\res" then deploy it again but I got the error "unsupported file type". I tried to restart the packager, delete all images under those directories, closed everything and opened again, even I tried to restart my PC but still get this error.</p>
  
  <p><img src="https://i.stack.imgur.com/KepFC.png" alt="This is the error image"></p>