Having problems using a custom class in a class as a datatype

Development Programming & Scripting
1

Hello, although I’m not new to C++ I am new to UE4.
I am working on getting up to speed on how everything works.
I have created a custom class that will be used as a datatype in another class.
Here is a basic custom class:

//Header

#pragma once

#include "Object.h"
#include "TestClass.generated.h"

/**
 * 
 */
UCLASS()
class MYPROJECT_API UTestClass : public UObject
{
	GENERATED_UCLASS_BODY()

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Testing)
	FString testString;
	
};

//Body

#include "MyProject.h"
#include "TestClass.h"


UTestClass::UTestClass(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{

}

Here is where I am trying to use the class in my character class:

//Header

// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
#pragma once
#include "TestClass.h"
#include "GameFramework/Character.h"
#include "MyProjectCharacter.generated.h"

UCLASS(Blueprintable)
class AMyProjectCharacter : public ACharacter
{
	GENERATED_UCLASS_BODY()

	/** Top down camera */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera)
	TSubobjectPtr<class UCameraComponent> TopDownCameraComponent;

	/** Camera boom positioning the camera above the character */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera)
	TSubobjectPtr<class USpringArmComponent> CameraBoom;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Testing)
	TSubobjectPtr<class UTestClass> test;

};

//Body

#include "MyProject.h"
#include "MyProjectCharacter.h"

AMyProjectCharacter::AMyProjectCharacter(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{
	// Set size for player capsule
	CapsuleComponent->InitCapsuleSize(42.f, 96.0f);

	// Don't rotate character to camera direction
	bUseControllerRotationPitch = false;
	bUseControllerRotationYaw = false;
	bUseControllerRotationRoll = false;

	// Configure character movement
	CharacterMovement->bOrientRotationToMovement = true; // Rotate character to moving direction
	CharacterMovement->RotationRate = FRotator(0.f, 640.f, 0.f);
	CharacterMovement->bConstrainToPlane = true;
	CharacterMovement->bSnapToPlaneAtStart = true;

	// Create a camera boom...
	CameraBoom = PCIP.CreateDefaultSubobject<USpringArmComponent>(this, TEXT("CameraBoom"));
	CameraBoom->AttachTo(RootComponent);
	CameraBoom->bAbsoluteRotation = true; // Don't want arm to rotate when character does
	CameraBoom->TargetArmLength = 800.f;
	CameraBoom->RelativeRotation = FRotator(-60.f, 0.f, 0.f);
	CameraBoom->bDoCollisionTest = false; // Don't want to pull camera in when it collides with level

	// Create a camera...
	TopDownCameraComponent = PCIP.CreateDefaultSubobject<UCameraComponent>(this, TEXT("TopDownCamera"));
	TopDownCameraComponent->AttachTo(CameraBoom, USpringArmComponent::SocketName);
	TopDownCameraComponent->bUseControllerViewRotation = false; // Camera does not rotate relative to arm

}

I am getting the following errors:

error C2039: ‘TestString’ : is not a member of ‘UTestClass’

error C2661: ‘UStrProperty::UStrProperty’ : no overloaded function takes 3 arguments

This seems like it should be fairly straight forward (at least using c++).
Can someone explain how to use custom classes as datatypes in UE4?

2

I got it working.
Here is the code if interested:

enter code here#pragma once

#include "Object.h"
#include "MyObject.generated.h"

/**
 * 
 */
UCLASS()
class MYPROJECT_API UMyObject : public UObject
{
	GENERATED_UCLASS_BODY()

	UPROPERTY(EditAnywhere, BlueprintreadWrite, Category = TestCat)
	bool TestBool;

	UFUNCTION(BlueprintCallable, Category = TestCat)
	bool GetTestBool();
	
};

//Body

#include "MyProject.h"
#include "MyObject.h"


UMyObject::UMyObject(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{
	TestBool = true;
}

bool UMyObject::GetTestBool()
{
	return TestBool;
}

//Header

#pragma once
#include "MyActorComponent.h"
#include "MyObject.h"
#include "GameFramework/Character.h"
#include "MyProjectCharacter.generated.h"

UCLASS(Blueprintable)
class AMyProjectCharacter : public ACharacter
{
	GENERATED_UCLASS_BODY()

	/** Top down camera */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera)
	TSubobjectPtr<class UCameraComponent> TopDownCameraComponent;

	/** Camera boom positioning the camera above the character */
	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Camera)
	TSubobjectPtr<class USpringArmComponent> CameraBoom;

	UPROPERTY(VisibleDefaultsOnly, BlueprintReadOnly, Category = CharacterStats)
	TSubobjectPtr<class UMyActorComponent> testComponent;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = TestCat)
	TSubobjectPtr<class UMyObject> baseStats;

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = TestCat)
	TSubobjectPtr<class UMyObject> currentStats;
};

//Body

#include "MyProject.h"
#include "MyProjectCharacter.h"

AMyProjectCharacter::AMyProjectCharacter(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{
	// Set size for player capsule
	CapsuleComponent->InitCapsuleSize(42.f, 96.0f);

	// Don't rotate character to camera direction
	bUseControllerRotationPitch = false;
	bUseControllerRotationYaw = false;
	bUseControllerRotationRoll = false;

	// Configure character movement
	CharacterMovement->bOrientRotationToMovement = true; // Rotate character to moving direction
	CharacterMovement->RotationRate = FRotator(0.f, 640.f, 0.f);
	CharacterMovement->bConstrainToPlane = true;
	CharacterMovement->bSnapToPlaneAtStart = true;

	// Create a camera boom...
	CameraBoom = PCIP.CreateDefaultSubobject<USpringArmComponent>(this, TEXT("CameraBoom"));
	CameraBoom->AttachTo(RootComponent);
	CameraBoom->bAbsoluteRotation = true; // Don't want arm to rotate when character does
	CameraBoom->TargetArmLength = 800.f;
	CameraBoom->RelativeRotation = FRotator(-60.f, 0.f, 0.f);
	CameraBoom->bDoCollisionTest = false; // Don't want to pull camera in when it collides with level

	// Create a camera...
	TopDownCameraComponent = PCIP.CreateDefaultSubobject<UCameraComponent>(this, TEXT("TopDownCamera"));
	TopDownCameraComponent->AttachTo(CameraBoom, USpringArmComponent::SocketName);
	TopDownCameraComponent->bUseControllerViewRotation = false; // Camera does not rotate relative to arm

	testComponent = PCIP.CreateDefaultSubobject<UMyActorComponent>(this, TEXT("testComponent"));

	baseStats = PCIP.CreateDefaultSubobject<UMyObject>(this, TEXT("BaseStats"));
	currentStats = PCIP.CreateDefaultSubobject<UMyObject>(this, TEXT("CurrentStats"));
}