UE5 PackagingResults: Error: Unknown Error

Hey, Im trying to package my game but it won’t package. I have some warnings but I don’t think that is the problem. The only error I have is : PackagingResults: Error: Unknown Error

If its needed here is with warnings : Dokument bez názvu - Google Docs

Hi there @Triocion

Welcome to the Unreal Forum. Did you see the part on the error below? That one stood out to me. Are the files in that directory?

‘The uncooked file would be expected on disk at ‘C:/Users/lucia/Documents/Unreal Projects/Horror/Content/MWLandscapeAutoMaterial/nordic_forest_ground_root_moss_coarse_xiekec0_4k/Nordic_Forest_Ground_Root_Moss_Coarse_xiekec0_4K_BaseColor.uasset’. Perhaps it has been deleted or was not synced?’

Hello,

I’m “new” to UE, so I’m not sure what everything means… But I don’t see this as an error, just a warning, which I think shouldn’t be the problem. The only thing I see as an actual error is “PackagingResults: Error: Unknown Error,” as I mentioned earlier.

I also tried packaging another game with Metahuman, and it didn’t work either. However, when I tried a new project without any additional assets, it packaged successfully.

Try going into your project folder and deleting the ‘Saved’ and ‘Intermediate’ folders then re-try. If that fails, I’d recommend migrating it over to a new project and see if you still have the same error.

Hello, after migrating everything I have this as en error

PackagingResults: Error: /Game/ExternalActors/FirstPerson/Maps/FirstPersonMap/2/D0/CALY71C1CDXYAVAKM5PQ4F : Failed import for WaterBrushManager /Game/FirstPerson/Maps/FirstPersonMap.FirstPersonMap:PersistentLevel.Landscape_WaterBrushManager_1
PackagingResults: Error: Unknown Cook Failure

So I added a water plugin but could you help me with this one?

LoadErrors: Error: Collision Profile settings do not include an entry for the Water Body Collision profile, which is required for water collision to function. Add entry to DefaultEngine.ini?
LoadErrors: Error: /Game/ExternalActors/FirstPerson/Maps/FirstPersonMap/2/D0/CALY71C1CDXYAVAKM5PQ4F : Failed import for WaterBrushManager /Game/FirstPerson/Maps/FirstPersonMap.FirstPersonMap:PersistentLevel.Landscape_WaterBrushManager_1
PackagingResults: Error: Unknown Error

I tried with chatgpt but it didnt really work for me. Also I tought about deleting it because it is not nescessary. And thank you for your help and sorry for my delayed response, I have to study.

Sure! I’d be happy to! Which versions of UE are you using and did you test after removing the Saved/Intermediate folders from the project files?

Hi, I tried it the way you said, with a new project. I found that the problem is probably caused by the landmass plugin. I created a new project and the package went fine until I added the landmass plugin (package error unknown). And when I removed it with Saved/Intermediate folders, the package worked again. I’m using the 5.5.3 version. So is there any fix to this? Or any suggestion how to make a terrain?

Did the issue come back after the Saved/Intermediate folders regen’d?

Whenever I try to add the landmass plugin, I get an unknown package error. Even if I remove the Saved/Intermediate folders, I still get the error. But when I remove the plugin, it starts working

Are all of your plugins up to date? (Also, which version of UE is this with?)

Im using 5.5.3 and I used landmass (or landscape) plugin and water plugin from ue editor. No plugin downloaded

If it’s not too much of a headache, I’d consider reinstalling UE if you’re only getting the error when you’re adding the landmass plugin. (Or try it in another version if you have one installed)