Can both of you please post these files from your Source directory?
YourGame.Build.cs
YourGame.Target.cs
This should help Epic to resolve this faster 
#Code Project
Do both of you have visual studio installed, and you meant to start a code-based project?
Did you start a code based project?
#Do You have VS Installed
Please reply to my answer so all the info is in one place (its called a Comment)
“Did you start a code based project? Yes, I did. BP project works fine.”
Do you have VS 2012 or 2013 installed?
Rama