Packaging (Windows): ERROR: Cook failed

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Hello so i was trying to package my project and it keep on saying Packaging (Windows): ERROR: Cook failed and i do not know how to fix it so if you could find a solution that would be great

errors:

UATHelper: Cooking (Windows): LogProperty: Error: FStructProperty::Serialize Loading: Property ‘StructProperty /Game/ThirdPerson/Blueprints/MySaveGameObject.MySaveGameObject_C:LevelData.LevelData’. Unknown structure.
PackagingResults: Error: FStructProperty::Serialize Loading: Property ‘StructProperty /Game/ThirdPerson/Blueprints/MySaveGameObject.MySaveGameObject_C:LevelData.LevelData’. Unknown structure.

  1. UATHelper: Cooking (Windows): LogInit: Display: LogProperty: Error: FStructProperty::Serialize Loading: Property ‘StructProperty /Game/ThirdPerson/Blueprints/MySaveGameObject.MySaveGameObject_C:LevelData.LevelData’. Unknown structure.
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Greetings @Abdalah.Salameh!

A similar error was encountered in another thread, please test the provided solution:

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