Are you sure you did everything correct?
line in the log
[2015.07.01-12.30.49:218][551]MainFrameActions: Packaging (Windows (64-bit)): Program.Main: ERROR: Exception in AutomationScripts.Automation: Missing receipt ‘UE4Game-Win64-Development.target.xml’. Check that target has been built.
means it cannot find that receipt… Make sure you have renamed it or it will not build correctly…