Xamarin build fails

Hi All,

I have a build defination on Vnext and i want to build my xamarin android project but i got error below. I am using TFS 2015 and my build defination only have one step which is build Xamarin.Android project step. I have tried to add Xamarin.License step but requires user name and password so i can not create a xamarin user also.

C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(446,2): error XA9008: Building from the command-line requires a Business License

Needs your help

Thanks.