InstancedFoliageActor Light Build error fix?

Development Programming & Scripting Blueprint
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1

This is the first error I got when building lighting on my landscape. When I try to build the lighting, I get this error message and the build error doesn’t complete.

How can I fix this? I’m using UE4.27

lightBuildErrorFix
lightBuildErrorFix1920×1026 99.7 KB

2

Open the foliage mesh and reduce it’s lightmap resolution Or set the lightmap resolution in the foliage tool settings.

Foliage tool

image
image563×832 64.4 KB

Mesh Editor

image
image1334×779 99.1 KB

For the other notice just add a light mass importance volume and scale it to surround the playable area of the map.