title: React Native app not running in XCode iOS simulator
body: <p>I try to make my first steps using React Native. Development for Android (on Windows host) works. Now I wanted to test iOS, and tried to set up a development environment on a MacBook Pro. </p>
  
  <p>Problem: React Native starts the iOS simulator, and then nothing happens any more. The simulator runs OK, but my React native app won't start.</p>
  
  <p>What do I need to do to get my React Native installation going?</p>
  
  <p>More Info:</p>
  
  <p>I set up XCode and React Native according to the docs on the MacBook Pro running OSx 10.13.2 (High Sierra). XCode was installed and tested successfully, including the simulator.</p>
  
  <p>When I installed Node.js I deliberately picked an older version (containing npm 4.2.0), since forums say that React Native does still have problems with npm 5. I also installed Homebrew and Watchman, like stated in the docs.</p>
  
  <p>To initialize an empty project, I used</p>
  
  <pre><code>create-react-native-app HelloWorldProject
  </code></pre>
  
  <p>and a projet structure got created in my Documents folder.</p>
  
  <p>If I finally fire up my "Hello World" test app using</p>
  
  <pre><code>cd HelloWorldProject
  sudo react-native run-ios
  </code></pre>
  
  <p>the system responds:</p>
  
  <pre><code>Starting packager ...
  Starting simulator ...
  </code></pre>
  
  <p>and then nothing happens. The simulator does indeed start (boot --> apple logo --> progress bar --> IOs start screen), but nothing happens afterwards.</p>
  
  <p><strong>Edit</strong>
  I have given up on React Native for several reasons, I leave this question here for documentary purposes, but I cannot verify or accept any answer, I don't have a React Native development environment any more.</p>