react-native run-android fails out of the box

Hi, I'm running Windows 10 and cloned the git@github.com:GeekyAnts/react-native-boilerplate-redux-flow.git repo and ran `react-native run-android` and it failed with the following error:

```
FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:installDebug'.
> com.android.builder.testing.api.DeviceException: No connected devices!

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 11 mins 35.338 secs
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:
https://facebook.github.io/react-native/docs/android-setup.html
events.js:167
throw er; // Unhandled 'error' event
^

Error: spawn cmd.exe ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:229:19)
at onErrorNT (internal/child_process.js:406:16)
at process._tickCallback (internal/process/next_tick.js:63:19)
Emitted 'error' event at:
at Process.ChildProcess._handle.onexit (internal/child_process.js:235:12)
at onErrorNT (internal/child_process.js:406:16)
at process._tickCallback (internal/process/next_tick.js:63:19)
```

Please let me know if you need any more information or there is any other way I can help to resolve this, thanks.