title: React Native - Packager not starting
body: <p>I've been going through some React Native courses and storing all my apps in a 'projects' folder. Everything has been working fine, but all of a sudden I seem to be having some issues with the packager not automatically starting up when i run <code>react-native run-ios</code> while I'm in the specific project's folder. The simulator pops up, but it only shows my previous apps and doesn't contain the new one I just created with <code>react-native init new-app</code>. I've been searching around and I can't seem to find any solution to this. Any thoughts?</p>
  
  <p>This is the last line showing in the terminal:</p>
  
  <pre><code>IDEDerivedDataPathOverride = /Users/[MY_USER]/Documents/projects/new-app/ios/build
  </code></pre>