title: How to set up an existing React-Native project from a new computer for the first time?
body: <p>So I recently started working with my friend on his app project and I've had trouble building his react-native based project. It's both ios and android.</p>
  <p>On android, I can get as far as building, but when I run the app shuts down instantly or shows a red screen with some firebase error.</p>
  <p>On ios, I get a build error.</p>
  <p>My question is: what do I need to install when I first pull the repo from github? I run '''yarn install''' straight away and run '''pod install''' from the ios folder but that isn't enough. Anything I should run for android more than the yarn install command I had already used?</p>
  <p>Thanks!</p>