msbuild.exe /m /t:Rebuild /clp:Summary /p:Configuration=Debug /p:Platform="Any CPU" /p:ServerAddress=x.x.x.x /p:ServerUser=xxxxx  /p:ServerPassword=xxxx mysoln.sln

C:Program Files (x86)MSBuildXamariniOSXamarin.iOS.Windows.After.targets(90,5): error : The current connection has never been connected. It needs to be connected first in order to use it as an active connection