Android problem at launch "unable to authorize device" ?

When testing the project on the android, at launch time i get that message.

The phone is in dev mode , i downloaded usb drivers, and cmd adb devices shows an id how it does show unauthorized.

what to do?



When you plug you phone, a dialog should appear asking “Do you authorize this device? and a SHA footprint”, you have to say Yes to authorize the computer to debug your device.