title: 'gradlew.bat' is not recognized as an internal or external command
body: <p>So i am trying to start a react native android project in windows 10 based on the <a href="https://facebook.github.io/react-native/docs/getting-started.html" rel="nofollow noreferrer">Getting Start React Native</a>. 
  I am stuck at the last step->react-native run-android</p>
  
  <p><a href="https://i.stack.imgur.com/ewrHQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ewrHQ.png" alt="Screenshot of command prompt"></a></p>
  
  <p>ps: Im using genymotion for my  android emulator marshmallow 6.0</p>