im having this issue when i try to compile on vistual studio 2017 community edition on a iphone 8 device
/Users/user/Desktop/app/app/app.iOS/bin/iPhone/Debug/device-builds/iphone10.5-11.2.1/app.iOS.app: Error: /Users/user/Desktop/app/app app/app.iOS/bin/iPhone/Debug/device-builds/iphone10.5-11.2.1/app.iOS.app: unknown error -1=ffffffffffffffff (app.iOS)
im not sure if its a problem regarding the provisioning profiles.
on android and the simulator it works perfect.
thanks in advance.