make Dedicated Server?

Hey guys, I’m trying to package my own Dedicated Server, but have some problems, can someone help me?

I follow the official tutorial to do this:
1, Compiling UE4, now version 4.14.1
2, VS generated Development Server (generated successfully, but did not find [name] Server.exe)
3, UE4 in the Project Launcher, cook when the error.
Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.AutomationException: Server target not found. Server target is required with -server and -cook or -cookonthefly
help me,Thank you!

have people ?