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Cannot package project

Everything works fine in Play mode, yet when I package I get all of this ********. Please help.


UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:888]  0]LogInit:Display: Warning/Error Summary (Unique only)
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:888]  0]LogInit:Display: -----------------------------------
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:888]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/Components/StorageInventoryComponent.StorageInventoryComponent_C:Add Item.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:888]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/Components/StorageInventoryComponent.StorageInventoryComponent_C:Remove Item.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:888]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/Components/StorageInventoryComponent.StorageInventoryComponent_C:Remove Item.CallFunc_Item_Details_Item_Details_Out2'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:889]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/Components/StorageInventoryComponent.StorageInventoryComponent_C:Find Items.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:889]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/Components/StorageInventoryComponent.StorageInventoryComponent_C:Spawn Items.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:889]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/Other/InventoryFunctions.InventoryFunctions_C:Item Details.Item Details Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:889]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/Other/InventoryFunctions.InventoryFunctions_C:Item Details.CallFunc_GetDataTableRowFromName_OutRow'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:890]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/Items/Item.Item_C:UserConstructionScript.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:890]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/Items/Item.Item_C:ExecuteUbergraph_Item.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:890]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/CraftingListing.CraftingListing_C:Set Crafting Listing Info.CallFunc_GetDataTableRowFromName_OutRow'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:891]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/CraftingTooltip.CraftingTooltip_C:Set Info.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:891]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/CraftingTooltip.CraftingTooltip_C:Set Info.CallFunc_Item_Details_Item_Details_Out2'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:891]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/CraftingTooltip.CraftingTooltip_C:Set Info.CallFunc_Item_Details_Item_Details_Out3'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:891]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/CraftingTooltip.CraftingTooltip_C:Set Info.CallFunc_Item_Details_Item_Details_Out4'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:892]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/CraftingTooltip.CraftingTooltip_C:Set Info.CallFunc_Item_Details_Item_Details_Out5'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:892]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/CraftingTooltip.CraftingTooltip_C:Set Info.Crafting Item Details'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:892]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/CraftingQueueListing.CraftingQueueListing_C:ExecuteUbergraph_CraftingQueueListing.CallFunc_Item_Details_Item_Details_Out'. Unknown struct
ure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:892]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/EquipmentSlot.EquipmentSlot_C:Update Equipment Slot.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:893]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Get Item Weight.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:893]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Inventory Slots Stats.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:893]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Inventory Slots Stats.CallFunc_Item_Details_Item_Details_Out2'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:893]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Thirst Stats.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:894]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Thirst Stats.CallFunc_Item_Details_Item_Details_Out2'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:894]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Hunger Stats.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:894]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Hunger Stats.CallFunc_Item_Details_Item_Details_Out2'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:894]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Stamina Stats.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:895]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Stamina Stats.CallFunc_Item_Details_Item_Details_Out2'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:895]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Health Stats.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:895]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Health Stats.CallFunc_Item_Details_Item_Details_Out2'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:895]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Item Description.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:896]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventoryTooltip.InventoryTooltip_C:Item Name.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:896]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/ExternalInventory.ExternalInventory_C:Find Free Slots.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:896]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/Inventory.Inventory_C:Find Free Slots.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:896]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventorySlot.InventorySlot_C:Set Info.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:897]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventorySlotOptions.InventorySlotOptions_C:Set Tooltip Options.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:897]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventorySlotOptions.InventorySlotOptions_C:Set Tooltip Options.CallFunc_Item_Details_Item_Details_Out2'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:897]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/InventorySlotOptions.InventorySlotOptions_C:Set Tooltip Options.CallFunc_Item_Details_Item_Details_Out3'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:897]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/EquipmentSlotOptions.EquipmentSlotOptions_C:ExecuteUbergraph_EquipmentSlotOptions.CallFunc_Item_Details_Item_Details_Out'. Unknown struct
ure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:898]  0]LogInit:Display: LogProperty:Error: UStructProperty::Serialize Loading: Property 'StructProperty /Game/Survival_Inventory/Blueprints/HUD/MoveItem.MoveItem_C:ExecuteUbergraph_MoveItem.CallFunc_Item_Details_Item_Details_Out'. Unknown structure.
UATHelper: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2017.03.31-21.53.55:898]  0]LogInit:Display: LogModuleManager:Warning: No filename provided for module OnlineSubsystemSteam

I have similar issues when I add fields to my structure.
To fix this I manually go through each ‘unknown structure’ error, delete structure-related nodes and make them again
This job is hideous so I refrain from altering my sturcture without absolute necessity

If someone knows how to prevent this error, please tell because I really gotten tired of this.

Add a variable to your struct, then remove it. This generally fixes the problems. Also do a “Refresh Nodes for External Changes” in your blueprints that contains those structs.

Try this, it’s easier than trying to manually find all the culprit nodes:

refreshallnodes.jpg

Thank you, you saved my life.

This worked! Make sure to go through each graph and click it. For example, if you use the struct in a Widget BP and use it in 3 functions for things to be visible, go to each function and the main Event Graph and that fixes it!

Thank you, thank you! You saved my day!

Thank you!!! You deserve a knighthood, my friend.

:smiley: This is it. Thank you Sir (bow)

Thanks you saved my ass today!

Thank you so much!

i have done what you seed and it it fixed it for me i am in 4.20.3 strange you need to do that :D.

PS: if any one can tel me how to build Developer build to test for steam i test it with standalone in UE4 Engine but i need to try it with Build game. When i build it works but steam dos not
comes out.

Add a variable to your problem struct, then add a variable there and delete that. compile your blueprint and then export that. It will work. It work for me

Wow! You Are A Savior!! Thanks!

Thanks for this, been using the engine for years, and never knew you could refresh all nodes. Saved my hours of turmoil :wink: Still learning something new each day

Heh, I would love to see the solution, but the image you have shared is not available…

Me too