title: react-native run-android fails, could not install app
body: <p>I m having a problem when I try to run my react-native application in my Android Device. The device is connected even when I make sure that it is.</p>
  <blockquote>
  <p>adb devices</p>
  <p>List of devices attached</p>
  <p>HMNBBCE6A2826109        device</p>
  </blockquote>
  <p>Device: Huawei Y2
  Android Version: 5.1
  Debug mode: enbaled
  the server is running.
  When i run</p>
  <blockquote>
  <p>react-native run-android</p>
  </blockquote>
  <p>I get this error</p>
  <blockquote>
  <p>Could not install the app on the device, read the error above for details.
  Make sure you have an Android emulator running or a device connected and have
  set up your Android development environment:
  <a href="https://facebook.github.io/react-native/docs/android-setup.html" rel="nofollow noreferrer">https://facebook.github.io/react-native/docs/android-setup.html</a></p>
  </blockquote>