Help! BlueprintCallable proterty cause[UnrealHeaderTool Error]

Development Programming & Scripting
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1

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void type is only valid as a return type [UnrealHeaderTool Error]

:frowning:

2

you are mixing UPROPERTY with UFUNCTION. In this particular case it should be UFUNCTION(BlueprintCallable), while UPROPERTY() is used before variables (properties)

3

Use chat GPT (it is decent for function declarations and unreal macros):

“for unreal 5, i need declaration of function that is blueprint callable, pure. In C++ its called HitDetect() , however in blueprints i want its node to be called PlayerHitDetect , it has no parameters and returns no value”

its reply to above prompt:

UFUNCTION(BlueprintCallable, BlueprintPure, Category = "Player")
void PlayerHitDetect();

and:

UFUNCTION(BlueprintCallable, BlueprintPure, Category = "Player")
void PlayerHitDetect() 
{
    HitDetect();
}

void HitDetect()
{
    // Implementation of your hit detection logic
}

Really helps to find where mistake was. Or just type in (copy/paste) code and error and usually it finds what is wrong (unless it is some logical stuff, where it kind of fails with non standard/common code).

ps.
And usual chatgpt error. It did not add part to rename node in blueprints, instead it added category “player”, and wrapped C++ function with another function to rename node. So always double check what it produces.

4

Why i try to use UPROPERTY with function? Noob question, easy solution. Thanks.