Exit Code = 25 [Error when Packaging for Windows]

Hi, wanted to demo my current build tomorrow but I’m getting this error when packaging. Can you point me towards a solution? Here is the last bit of the logs from its packaging attempt:

MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2016.05.07-08.35.12:081][ 0]LogWindows:Error: Windows GetLastError: The operation completed successfully. (0)
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2016.05.07-08.35.12:247][ 0]LogOutputDevice:Error:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: begin: stack for UAT
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2016.05.07-08.35.12:247][ 0]LogWindows:Error: === Critical error: ===
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: Fatal error: [File:D:\BuildFarm\buildmachine_++UE4+Release-4.11\Engine\Source\Runtime\Core\Public\Serialization\Archive.h] [Line: 96]
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: FMemoryWriter does not support data larger than 2GB. Archive name: C:/Users/George Mylonas/Documents/Unreal Projects/PleaseV411/Content/Please/Maps/IndustrialMap.umap.
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2016.05.07-08.35.12:248][ 0]LogOutputDevice:Error:
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: end: stack for UAT
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2016.05.07-08.35.12:280][ 0]LogPhysics:Warning: PHYSX: …\PhysX\src\NpScene.cpp (2946) 8 : PxScene::unlockWrite() called without matching call to PxScene::lockWrite(), behaviour will be undefined.
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2016.05.07-08.35.12:280][ 0]LogPhysics:Warning: PHYSX: …\PhysX\src\NpScene.cpp (2946) 8 : PxScene::unlockWrite() called without matching call to PxScene::lockWrite(), behaviour will be undefined.
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2016.05.07-08.35.12:280][ 0]LogPhysics:Warning: PHYSX: …\PhysX\src\NpScene.cpp (2946) 8 : PxScene::unlockWrite() called without matching call to PxScene::lockWrite(), behaviour will be undefined.
MainFrameActions: Packaging (Windows (32-bit)): UE4Editor-Cmd: [2016.05.07-08.35.12:280][ 0]LogPhysics:Warning: PHYSX: …\PhysX\src\NpScene.cpp (2946) 8 : PxScene::unlockWrite() called without matching call to PxScene::lockWrite(), behaviour will be undefined.
MainFrameActions: Packaging (Windows (32-bit)): CommandUtils.Run: Run: Took 1044.6156226s to run UE4Editor-Cmd.exe, ExitCode=3
MainFrameActions: Packaging (Windows (32-bit)): Project.Cook: Cook failed. Deleting cooked data.
MainFrameActions: Packaging (Windows (32-bit)): Program.Main: ERROR: AutomationTool terminated with exception: AutomationTool.AutomationException: Cook failed. —> AutomationTool.AutomationException: BUILD FAILED: Failed while running Cook for C:\Users\George Mylonas\Documents\Unreal Projects\PleaseV411\Please.uproject; see log C:\Users\George Mylonas\AppDa
ta\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+4.11\Cook-2016.05.07-01.35.23.txt
MainFrameActions: Packaging (Windows (32-bit)): at AutomationTool.CommandUtils.RunCommandlet(FileReference ProjectName, String UE4Exe, String Commandlet, String Parameters)
MainFrameActions: Packaging (Windows (32-bit)): at Project.Cook(ProjectParams Params)
MainFrameActions: Packaging (Windows (32-bit)): — End of inner exception stack trace —
MainFrameActions: Packaging (Windows (32-bit)): at Project.Cook(ProjectParams Params)
MainFrameActions: Packaging (Windows (32-bit)): at BuildCookRun.DoBuildCookRun(ProjectParams Params)
MainFrameActions: Packaging (Windows (32-bit)): at AutomationTool.BuildComman
MainFrameActions: Packaging (Windows (32-bit)): d.Execute()
MainFrameActions: Packaging (Windows (32-bit)): at AutomationTool.Automation.Execute(List1 CommandsToExecute, CaselessDictionary1 Commands)
MainFrameActions: Packaging (Windows (32-bit)): at AutomationTool.Automation.Process(String[] CommandLine)
MainFrameActions: Packaging (Windows (32-bit)): at AutomationTool.Program.MainProc(Object Param)
MainFrameActions: Packaging (Windows (32-bit)): at AutomationTool.InternalUtils.RunSingleInstance(Func`2 Main, Object Param)
MainFrameActions: Packaging (Windows (32-bit)): at AutomationTool.Program.Main()
MainFrameActions: Packaging (Windows (32-bit)): Program.Main: AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure)
MainFrameActions: Packaging (Windows (32-bit)): Domain_ProcessExit
MainFrameActions: Packaging (Windows (32-bit)): copying UAT log files…
MainFrameActions: Packaging (Windows (32-bit)): BUILD FAILED
PackagingResults:Error: Error Unknown Cook Failure

I think the main problem is shown here, but I don’t know what it means exactly. It’s saying some data was too large, but what can I do about that? Is it too many big textures, or…?

Fatal error: [File:D:\BuildFarm\buildmachine_++UE4+Release-4.11\Engine\Source\Runtime\Core\Public\Serialization\Archive.h] [Line: 96]
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: FMemoryWriter does not support data larger than 2GB. Archive name:
(and then it gives the file path to one of my maps)

[link text][1]

Here’s the full Packaging log. Please help- I don’t know what’s wrong.
[1]: 89847-cook-2016.05.08-12.22.50.txt (1.73 MB)

The map file size that the error I located points to is 1.758GB so it’s under the 2GB limit.

Ok so it was lightmaps in the level that were causing the problem. Small lightmaps is the solution.