I can't generate IPA from Visual Studio

I'm trying build my iOS application from Visual Studio for generate an IPA file, but I'm not having success.I set it up my provisioning profile, with my AppID etc, and when I try compile iOS application, gives following error:

"D:\AppNivel_Bkp_14032018_1450h\AppNivel\AppNivel.iOS\AppNivel.iOS.csproj" (default target) (1) ->
(_CodesignAppBundle target) ->
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(1930,3): error : /Users/user122749/Library/Caches/Xamarin/mtbs/Users/carlo/Desktop/IOS/AppNivel.iOS.app: unknown error -1=ffffffffffffffff
"