Unions and TUnion

I was declaring them just the same, as follows:


#pragma once

typedef union itemValue{
	float fValue;
	int32 iValue;
}ItemValue;

#include "GameFramework/Actor.h"
#include "Item.generated.h"

/**
 * 
 */
UCLASS()
class AItem : public AActor
{
	GENERATED_UCLASS_BODY()

	UPROPERTY()
	TSubobjectPtr<class UStaticMeshComponent> Mesh;

	UPROPERTY()
	FString ItemName;

	UPROPERTY()
	ItemValue Value;

//The Properties and Functions continue


But I still get a build error: