Datasmith error when attempting to package - Error: Ensure condition failed: It->Value File:Engine\Plugins\Enterprise\DatasmithContent\Source\DatasmithContent\Private\DatasmithAssetUserData.cpp

Many clients reported similar issues with packaging and Datasmith.

Forum post: https://forums.unrealengine.com/unreal-engine/unreal-studio/1561770-packaging-failed-datasmith-error

Client report that It's a project that they've been working on since 4.19. It was imported using Datasmith 4.19. It used to package without problems on UE 4.20.3. Now this is their first attempt to package this project/level after updating to 4.21.1, and I got this error.

UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: begin: stack for UAT UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: === Handled ensure: === UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: Ensure condition failed: It->Value [Link Removed] [Line: 25] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: Stack: UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff869d116e6 UE4Editor-DatasmithContent.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff87817d25a UE4Editor-CoreUObject.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff87826d7f5 UE4Editor-CoreUObject.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff878288a24 UE4Editor-CoreUObject.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff878287c19 UE4Editor-CoreUObject.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff875c4620f UE4Editor-Engine.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff87337d511 UE4Editor-UnrealEd.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff8733830b9 UE4Editor-UnrealEd.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff8733a2200 UE4Editor-UnrealEd.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff87320516b UE4Editor-UnrealEd.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff87323722f UE4Editor-UnrealEd.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff77412ed22 UE4Editor-Cmd.exe!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff774125783 UE4Editor-Cmd.exe!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff7741259ea UE4Editor-Cmd.exe!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff7741348da UE4Editor-Cmd.exe!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff77413584e UE4Editor-Cmd.exe!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff8c6113034 KERNEL32.DLL!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff8c8893691 ntdll.dll!UnknownFunction [] UATHelper: Packaging (Windows (64-bit)): LogInit: Display: LogOutputDevice: Error: end: stack for UAT
 

 

Repro Step

1. Extract the following plugin to your UE_4.21/Engine/Plugins/Marketplace folder.

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2. Create a new project (Unreal Studio / Blank), activate the attached plugin and the Substance plugin, close the editor.

3. Extract this file to the project's Content folder:

-->[Link Removed]

4. Open Unreal, set the game default map to Maps/HLar and add it to the list of maps, set package mode to Shipping, and attempt to package the game.

 

 

Project and Files can be found here :

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