title: Xcode 11 Upgrade | Could not find iPhone X simulator | XRPackageModel 9.0.omo
body: <p>Anyone else getting this since upgrading from <a href="https://developer.apple.com/documentation/xcode_release_notes/xcode_10_3_release_notes" rel="noreferrer">Xcode 10.3</a> to <a href="https://developer.apple.com/documentation/xcode_release_notes/xcode_11_release_notes" rel="noreferrer">Xcode 11</a> when running <code>react-native run-ios</code> and any idea to get back up and running?</p>
  
  <pre><code>CoreData: annotation:  Failed to load optimized model at path '/Applications/Xcode.app/Contents/Applications/Instruments.app/Contents/Frameworks/InstrumentsPackaging.framework/Versions/A/Resources/XRPackageModel.momd/XRPackageModel 9.0.omo'
  error Could not find iPhone X simulator
  </code></pre>