title: Unable to build react native project after updating to xcode 11.0
body: <p>I have a react native project running on react native version 0.59.8 , and xcode version 10.3. Somehow my xcode got updated to version 11.0 and after that i am unable to build the project using <code>react-native run-ios</code> command.</p>
  
  <p>I have tried cleaning up the build and building again. But that doesn't help.</p>
  
  <p>I am getting the following error:</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>
  
  <p>How to fix this issue?</p>