Configure TFS in Virual machine using unattend command

Dear Experts

i have created the Virtual machine for Team Foundation server.

Once the Virutal machine is created, am trying to configure the TFS using Unattend Command

using this link https://msdn.microsoft.com/en-us/library/dn745593.aspx

but am getting an error



Can any one tell me what is problem, and give me solution

Thanks in Advance

Regards

Baskar. G