Adb is showing this exception in Android studio
PropertyFetcher: AdbCommandRejectedException getting properties for device ZX1B32QXZV: device unauthorized. Please check the confirmation dialog on your device.
I have confirmed the dialog and even formatted my OS
in Android Studio go to the launch configuration ("Edit Configurations:..."). Then under Target Device: choose the following value
I had the same problem and had it set to "USB Device". This caused the connection to fail when trying to deploy to the emulator.