HELP: Failed to find shader map for default material WorldGridMaterial .........?

After packaging my project (Development Build, Windows, UE 5.0.1 Source), I get this error upon launching my (packaged) game (which, has never occurred before):

[2022.04.22-05.54.34:754][ 0]Message dialog closed, result: Ok, title: The UE5-SpeedGame Game has crashed and will close, text: Fatal error: [File:D:\Unreal Engine\Source\UE5\ue5source\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp] [Line: 2259]
Failed to find shader map for default material WorldGridMaterial(/Engine/EngineMaterials/WorldGridMaterial.WorldGridMaterial)! Please make sure cooking was successful (Contains inline shaders, has GTSM)

[2022.04.22-05.54.34:754][ 0]LogWindows: Error: === Critical error: ===
[2022.04.22-05.54.34:754][ 0]LogWindows: Error:
[2022.04.22-05.54.34:754][ 0]LogWindows: Error: Fatal error: [File:D:\Unreal Engine\Source\UE5\ue5source\Engine\Source\Runtime\Engine\Private\Materials\MaterialShared.cpp] [Line: 2259]
[2022.04.22-05.54.34:754][ 0]LogWindows: Error: Failed to find shader map for default material WorldGridMaterial(/Engine/EngineMaterials/WorldGridMaterial.WorldGridMaterial)! Please make sure cooking was successful (Contains inline shaders, has GTSM)


Any help to resolve this issue is greatly appreciated!

1 Like

Hello,
I have the same issue, did you already resolve it by any chance or not ?
regards,

The solution that I found is activating use generate pack

Projects settings->Packaging->use pak file