These are last three lines in log when trying to package ThirdPerson or VehicleAdvanced:
UE4Editor-Cmd: [2016.04.05-20.29.53:539][ 0]LogCook:Display: Invalidating cooked content because Engine:Core.System:Paths:…/…/…/Engine/Content ini setting was out of date
UE4Editor-Cmd: [2016.04.05-20.29.58:939][ 0]CookResults:Warning: Warning Unable to find package for map NewMap.
UE4Editor-Cmd: [2016.04.05-20.29.58:940][ 0]LogCook:Warning: Unable to find package for map NewMap.
If i go to project settings->Maps&Modes and turn off “Use Splitscreen” this is what i get in log:
UE4Editor-Cmd: [2016.04.05-20.33.06:321][ 0]LogCook:Display: Invalidating cooked content because Engine:/Script/EngineSettings.GameMapsSettings:bUseSplitscreen:False ini setting was out of date
UE4Editor-Cmd: [2016.04.05-20.33.17:440][ 0]CookResults:Warning: Warning Unable to find package for map NewMap.
UE4Editor-Cmd: [2016.04.05-20.33.17:440][ 0]LogCook:Warning: Unable to find package for map NewMap.
ProjectSettings->Packaging->BuildConfiguration set to shipping:
UE4Editor-Cmd: [2016.04.05-20.39.28:064][ 0]LogCook:Display: Invalidating cooked content because Game:/Script/UnrealEd.ProjectPackagingSettings:BuildConfiguration:PPBC_Shipping ini setting was out of date
UE4Editor-Cmd: [2016.04.05-20.39.31:478][ 0]CookResults:Warning: Warning Unable to find package for map NewMap.
UE4Editor-Cmd: [2016.04.05-20.39.31:478][ 0]LogCook:Warning: Unable to find package for map NewMap.
In all three cases i would try to build using project launcher. Building with 4.10.4 always work no matter what i change.