Getting "unknown error" when building for iPhone device

I'm trying to build iOS version of my Xamarin.Forms app. It builds and runs on emulator. However, when I try to build to deploy it for device, I got an error: C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(1868,3): error : /Users/malexeyev/Library/Caches/Xamarin/mtbs/builds/TennisUmpireXamarin.iOS/1a11674a8b782437e3e3693d97e9c823/bin/iPhone/Debug/TennisUmpireXamariniOS.app: unknown error -1=ffffffffffffffff

I'm using Visual Studio 2017 Version 15.4.5 Device is iPhone 5c, iOS 10.2.1

Any ideas how to troubleshoot/fix it are appreciated.