Test on Actual Device (Android) Error

I tried to develop the android software communicated with watch device and test on actual device.

I have already installed "Garmin Connect" app on Android device,

but error message "Garmin Connect Mobile is required to use this application" is shown on the dialog.

I click "YES" and go to "Google Play" page, but "Garmin Connect" app has already installed & not work test app.

How to resolve it?