title: Running into 'Cannot read property 'ReactCurrentOwner' of undefined' after installing packages
body: <p>I run into the following error in ReactNative on app launch:</p>
  
  <p><code>Cannot read property 'ReactCurrentOwner' of undefined</code></p>
  
  <p>This usually happens after installing a new package or switching branches on my project with different sets of packages installed. </p>
  
  <p>I'm can resolve it by running <code>react-native-git-upgrade</code> but this does not seem like a real solution.</p>
  
  <p>Any ideas what can cause this error and how to avoid it? </p>