title: React Native 0.60 connection to development server
body: <p>(I'm almost a newbie in React Native development) today I have started a new project in React Native 0.60 (<code>react-native init MyApp</code>).</p>
  
  <p>After that I typed : <code>react-native run-android</code> to check if everything worked.</p>
  
  <p>After the bundle process is finished 
  <a href="https://i.stack.imgur.com/TCTkj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TCTkj.png" alt="enter image description here"></a>
  I can finally get my welcome screen in my connected devices</p>
  
  <p><a href="https://i.stack.imgur.com/oTSv9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oTSv9.png" alt="enter image description here"></a></p>
  
  <p>But, if I try to reload the app from my devices I get this error:</p>
  
  <p><a href="https://i.stack.imgur.com/inr4g.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/inr4g.png" alt="enter image description here"></a></p>
  
  <p>How could I address this error ?</p>
  
  <p>EDIT: Thank you for your answers, anyway, I have tried all solutions you suggest but I still get the same problem. I also noticed that when i run <code>react-native run-android</code> Metro Bundler (open in a new cli window) seems to start but it suddenly disappear. I think the problem could be with the message '<strong>Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0</strong>'</p>