title: React Native app works when run from Xcode, but crashes when run with 'react-native run-ios'
body: <p>Today my React Native app crashed when I ran it using <code>react-native run-ios</code>. The default splash screen would appear, but then it would crash and I would just see the emulator homescreen with my app's icon on the desktop. The Terminal is hanging on "Loading dependency graph, done". It worked fine yesterday, and I haven't changed anything since then. When I run it from Xcode, it works. I've tried all the suggestions at the following four links for getting it to run with <code>react-native run-ios</code> without success: <a href="https://github.com/facebook/react-native/issues/16798" rel="noreferrer">link1</a> <a href="https://github.com/facebook/react-native/issues/19121" rel="noreferrer">link2</a> <a href="https://medium.com/@TETRA2000/react-native-bundle-hangs-during-loading-dependency-graph-f40bc7347125" rel="noreferrer">link3</a> and <a href="https://stackoverflow.com/questions/34406567/react-native-get-stuck-at-dependency-graph">link4</a></p>
  
  <p><strong>My Question Is:</strong></p>
  
  <p>Does anyone know why it would work from Xcode and not from <code>react-native run-ios</code>? And does anyone know why it would suddenly start crashing when it worked fine before?</p>