Cook Error

General Issues and Bug Reporting
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1

Reference ID

995eb17a-4516-613e-5465-38806bfbcfad

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

World Building

Summary

I’m getting a Cook error and Fortnite gets stuck. This happened after building HLODs.
PlatformCook: Error: LogWindows: Error: appError called: Assertion failed: Owner->IsMeshDescriptionValid(0) [File:D:\build++Fortnite\Sync\Engine\Source\Runtime\Engine\Private\StaticMesh.cpp] [Line: 3086]
Bad MeshDescription on /982c05ff-4795-a6a6-6c58-af891c87a676/externalactors/zombieisland/3/q7/qse0sh2ji62xskm6eddnbh.StaticMesh_ZombieIsland_DefaultHLODLayer_0
PlatformCook: Error: LogWindows: Error: appError called: Assertion failed: Owner->IsMeshDescriptionValid(0) [File:D:\build++Fortnite\Sync\Engine\Source\Runtime\Engine\Private\StaticMesh.cpp] [Line: 3086]
Bad MeshDescription on /982c05ff-4795-a6a6-6c58-af891c87a676/externalactors/zombieisland/3/q7/qse0sh2ji62xskm6eddnbh.StaticMesh_ZombieIsland_DefaultHLODLayer_0

Steps to Reproduce

  1. Build HLOD
  2. Launch Session

Expected Result

Fortnite session should launch for testing.

Observed Result

Gets stuck in loading lobby.

Platform(s)

windows

2

Same happening on my end. Ater building HLODs and trying to start the game this happens

1 Like
3

Found the solution! You have to remove any custom meshes from HLOD. You might be able to add them if you create custom HLODs for them… but ain’t nobody got time for dat!