title: npm run android is not working in windows 10
body: <p>I'm new to React Native programming. I'm having difficulty in running my app in Android phone, because my npm run android is not working. </p>
  
  <p><a href="https://i.stack.imgur.com/FeR0A.png" rel="nofollow noreferrer">Cmd result Picture</a></p>
  
  <p>What should I do?</p>