Packaging Results Error: Unknown Error

Thanks for your notice.

I wasn’t aware of the existence of a log until yesterday. Since my last packaging was a couple of days ago, I’ll repackage tomorrow and post the errors only on this post to minimize the size.

anyway, here are the error logs I found:
LogBlueprint:Error: [compiler CheckList] Error The current value (/Game/FirstPersonCPP/Blueprints/Items/Alluminium.Alluminium_C) of the ’ Class ’ pin is invalid: /Game/FirstPersonCPP/Blueprints/Items/Alluminium.Alluminium_C isn’t a valid subclass of ItemMaster_C (specified on pin Class)

LogBlueprint:Error: [compiler CheckList] Error The current value (/Game/FirstPersonCPP/Blueprints/Items/Cloth.Cloth_C) of the ’ Class ’ pin is invalid: /Game/FirstPersonCPP/Blueprints/Items/Cloth.Cloth_C isn’t a valid subclass of ItemMaster_C (specified on pin Class)

LogBlueprint:Error: [compiler MyHUD] Error The current value (/Game/FirstPersonCPP/Blueprints/Items/Alluminium.Alluminium_C) of the ’ Class ’ pin is invalid: /Game/FirstPersonCPP/Blueprints/Items/Alluminium.Alluminium_C isn’t a valid subclass of ItemMaster_C (specified on pin Class)