adb not starting: ADB_VENDOR_KEYS

[UManager18]

Hi,

trying to launch adb but get:

daemon not running. starting it now on port 5037 *
daemon started successfully * error: device unauthorized. This adbd's $ADB_VENDOR_KEYS is not set; try 'adb kill-server' if that seems wrong. Otherwise check for a confirmation dialog on your device.

Tried every suggestion on other posts and none of them have worked

 

[Nate_K]

Developer options > Revoke usb debugging authorization If that does not work, unplug phone, remove all allowed devices, plug phone back in.