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No world was found for object (/Script/RPG.Default__LongGuRen) passed in to UEngine::GetWorldFromContextObject().

Hello,I used the GetPlayerCharacter() function in an Actor class to get my current character class

ABaseCharacter* Ch = Cast(UGameplayStatics::GetPlayerCharacter(this, 0)); if (Ch) { return ItemProperty.ItemUserGrade > Ch->CharacterProperty.CharacterGrade ? false : true; UE_LOG(LogTemp, Warning, TEXT("User Item")); Destroy(); } else { UE_LOG(LogTemp, Warning, TEXT("Ch == NULL")); }

But When I Use Item, it Show Up

LogScript: Warning: Script Msg: No world was found for object (/Script/RPG.Default__LongGuRen) passed in to UEngine::GetWorldFromContextObject().

This Is My LongGuRen.CPP alt text

My item class inheritance relationship is as follows: I have an inheritance in the base class for all items of the Actor ABaseItem, then have three class in ABaseItem, respectively, BaseWeapon, BaseStrengthen and BaseConsumables,My LongGuRen.Cpp inherits from BaseWeapon.

This Is My UseItem() Function :

BaseItem :

 bool ABaseItem::UseItem()
     return true;


 bool ABaseWeapon::UseItem()
     return Super::UseItem();

Below is the logic of my use of the item:

InventoryUserWidget.cpp alt text

InventoryProperty.ItemClass stores my item class, type is

struct FInventoryProperty { TSubclassOf<class ABaseItem> ItemClass; uint8 Amount : 7; };

The error is that I executed the ItemButtonEvnet() error, which is to use the item.

Thank you~;

Product Version: UE 4.21
longguren.png (296.5 kB)
inventory.png (360.9 kB)
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asked Feb 10 '19 at 05:09 PM in C++ Programming

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