Can't build lighting

Peter_Bengtson · May 9, 2020, 3:13pm

Doing the course on a Mac. The problem: Building lighting doesn’t work. This is the output log:

MapCheck: New page: Map Check
LightingResults: New page: Lighting Build - 9 May 2020, 19:08:33
LogStaticLightingSystem: Running Lightmass w/ ImmediateImport mode ENABLED
LogStaticLightingSystem: Running Lightmass w/ ImmediateProcess mode ENABLED
LogStaticLightingSystem: Running Lightmass w/ Sorting mode ENABLED
LogStaticLightingSystem: Running Lightmass w/ Mapping paddings ENABLED
LogStaticLightingSystem: Running Lightmass w/ Mapping debug paddings DISABLED
LogEditorBuildUtils: Build time 0:00
LogUObjectHash: Compacting FUObjectHashTables data took   0.44ms
LogStaticLightingSystem: Warning: Failed to build lighting!!! Lighting build failed.
DumpUnbuiltLightIteractions
Lights with unbuilt interactions: 1
    Light LightSource
Primitives with unbuilt interactions: 64
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_21
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_22
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_62
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_14
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_61
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_60
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_59
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_58
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_57
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_56
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_55
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_54
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_53
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_52
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_51
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_50
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_49
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_48
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_47
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_15
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_0
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_1
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_2
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_3
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_4
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_5
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_6
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_7
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_8
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_9
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_10
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_11
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_12
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_13
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_46
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_23
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_16
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_17
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_18
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_19
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_20
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_63
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_31
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_34
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_44
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_24
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_25
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_26
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_27
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_28
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_29
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_30
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_40
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_32
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_33
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_41
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_35
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_36
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_37
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_38
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_39
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_45
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_42
    Primitive LandscapeComponent /Game/Battleground.Battleground:PersistentLevel.Landscape_1.LandscapeComponent_43
Cmd: MAP CHECK NOTIFYRESULTS
MapCheck: New page: Battleground - 9 May 2020, 19:10:44
MapCheck: Error: WorldSettings_1 Maps need lighting rebuilt 
MapCheck: Map check complete: 1 Error(s), 0 Warning(s), took 0,408ms to complete.

There is no level called WorldSettings_1. Lightmass volume added to the scene.

UE 4.25.0.

Grateful for any help.

Peter_Bengtson · May 9, 2020, 3:22pm

The Message Log gives absolutely no information either:

… and that’s a completely useless error message, if you ask me.

Peter_Bengtson · May 9, 2020, 3:32pm

I just got it working, though I have no idea how. After creating a Levels subfolder, moving the single level there and fixing the folder redirections, I then could build.

Googling this issue shows that many have this exact problem, down to the exact name of the “World_Settings_1” file, which moreover is nonexistent in the project.

Might be good to sort this out for your course.

100PixelsSquared · May 20, 2020, 9:54am

That is a normal error and is talked about near the start of the course, it should disappear once the build finishes. Also to increase your chance of getting an answer PLEASE use the correct category.
This is a question about the Unreal Engine course, not talking about the Unity Course.