Think I’ve found the problem, it looks like a lot of your filenames are too long, but then again these looks like KiteDemo assets so perhaps that’s not the issue. Still sifting through, that’s a heck of a build log!
[2015.09.03-18.46.17:905][732]PackagingResults:Error: Error Error Couldn't save package, filename is too long: E:/Thurs_3rd_church_backup/Church Project/August backup/backup/Church_real - Copy/Saved/Cooked/WindowsNoEditor/Church_real1/Content/KiteDemo/Environments/Foliage/Flowers/Heather/M_HeatherPatches_Inst2_BrownPinkVairience_NoWind.uasset
[2015.09.03-18.46.17:916][733]MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2015.09.03-18.46.17:902] 0]LogInit:Display: LogCook:Error: Couldn't save package, filename is too long :E:/Thurs_3rd_church_backup/Church Project/August backup/backup/Church_real - Copy/Saved/Cooked/WindowsNoEditor/Church_real1/Content/KiteDemo/Environments/Foliage/Flowers/Heather/M_HeatherPatches_Inst2_BrownPinkVairience_NoWind.uasset
Also, I find it weird that the cooker logs Package Saving as a Warning… is that intentional?
I’ve also found a few Lightmap errors which you may need to look into as well, starts around line 10,800
[2015.09.03-18.37.14:451][771]MapCheck:Error: Error candle_holder_10 Component is a static type but has invalid lightmap settings! Indirect lighting will be black. Common causes are lightmap resolution of 0, LightmapCoordinateIndex out of bounds.
[2015.09.03-18.37.14:451][771]MapCheck:Warning: Warning candle_holder_10 Static mesh actor has NULL StaticMesh property
[2015.09.03-18.37.14:451][771]MapCheck:Warning: Warning candle_holder_10 Static mesh actor has NULL StaticMesh property
Also, I’d recommend possibly deleting all your temporary folders for the Project. Delete the Saved, Intermediate, Build, Binaries folders and maybe even try deleting the DerivedDataCache. The cooker might still be referencing old assets.
EDIT: Also, gonna move this to the ‘Feedback’ section since it’s probably more relevant there…