Cannot put a UImage* UPROPERTY into a C++ structure

Development Programming & Scripting
1

I was writing a struct named “FPickableItemDisplayData”
Here is the C++ .h file:

#pragma once

#include "Components/Image.h"

#include "PickableItemDisplayData.generated.h"

USTRUCT(BlueprintType)
struct FPickableItemDisplayData
{
    GENERATED_BODY()

    UPROPERTY(BlueprintReadWrite, EditAnywhere)
    UImage* Image;

    UPROPERTY(BlueprintReadWrite, EditAnywhere)
    FText Title;

    UPROPERTY(BlueprintReadWrite, EditAnywhere)
    FText Description;
    
};

You can see that there is a “UImage*” class property inside, with UPROPERTY, and it generates the following error when building project:

unresolved external symbol "__declspec(dllimport) class UClass * __cdecl Z_Construct_UClass_UImage_NoRegister(void)" (__imp_?Z_Construct_UClass_UImage_NoRegister@@YAPEAVUClass@@XZ) referenced in function "void __cdecl `dynamic initializer for 'public: static struct UE4CodeGen_Private::FObjectPropertyParams const Z_Construct_UScriptStruct_FPickableItemDisplayData_Statics::NewProp_Image''(void)" (??__E?NewProp_Image@Z_Construct_UScriptStruct_FPickableItemDisplayData_Statics@@2UFObjectPropertyParams@UE4CodeGen_Private@@B@@YAXXZ)

It seems that this action causes a link failure. And when I delete the “UPROPERTY()” declaration above the UImage*, the compilation went fine but it wasn’t what I want for,

Did anyone know how to resolve this problem?

2

Hi! Can you try to add UMG to PublicDependencyModuleNames in your module Build.cs file? UMG Module is required to resolve UImage class defenition.

3

Yes, adding “UMG” into the Build.cs worked!
Thanks a lot!