Something about line 27 in my shootercharacter.cpp is making unreal engine crash

[Ezra_Haagen]

the line in question is

ActiveGun->SetOwner(this);

i can provide my entire file, if necessary:

// Fill out your copyright notice in the Description page of Project Settings.


#include "ShooterCharacter.h"
#include "Gun.h"
#include "Components/CapsuleComponent.h"
#include "SimpleShooterGameModeBase.h"

// Sets default values
AShooterCharacter::AShooterCharacter()
{
 	// Set this character to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;

}

// Called when the game starts or when spawned
void AShooterCharacter::BeginPlay()
{
	Super::BeginPlay();

	Health = MaxHealth;

	ActiveGun = GetWorld()->SpawnActor<AGun>(RifleClass);
	GetMesh()->HideBoneByName(TEXT("weapon_r"), EPhysBodyOp::PBO_None);
	ActiveGun->AttachToComponent(GetMesh(), FAttachmentTransformRules::KeepRelativeTransform, TEXT("WeaponSocket"));
	ActiveGun->SetOwner(this);
}

bool AShooterCharacter::IsDead() const
{
	return Health <= 0;
}

float AShooterCharacter::GetHealthPercent() const
{
	return Health / MaxHealth;
}

// Called every frame
void AShooterCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

}

// Called to bind functionality to input
void AShooterCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);

	PlayerInputComponent->BindAxis(TEXT("MoveForward"), this, &AShooterCharacter::MoveForward);
	PlayerInputComponent->BindAxis(TEXT("LookUp"), this, &APawn::AddControllerPitchInput);
	PlayerInputComponent->BindAxis(TEXT("MoveRight"), this, &AShooterCharacter::MoveRight);
	PlayerInputComponent->BindAxis(TEXT("LookRight"), this, &APawn::AddControllerYawInput);
	PlayerInputComponent->BindAxis(TEXT("LookUpRate"), this, &AShooterCharacter::LookUpRate);
	PlayerInputComponent->BindAxis(TEXT("LookRightRate"), this, &AShooterCharacter::LookRightRate);
	PlayerInputComponent->BindAction(TEXT("Jump"), EInputEvent::IE_Pressed, this, &ACharacter::Jump);
	PlayerInputComponent->BindAction(TEXT("Shoot"), EInputEvent::IE_Pressed, this, &AShooterCharacter::Shoot);

}

float AShooterCharacter::TakeDamage(float DamageAmount, struct FDamageEvent const &DamageEvent, class AController *EventInstigator, AActor *DamageCauser) 
{
	float DamageToApply = Super::TakeDamage(DamageAmount, DamageEvent, EventInstigator, DamageCauser);
	DamageToApply = FMath::Min(Health, DamageToApply);
	Health -= DamageToApply;
	UE_LOG(LogTemp, Warning, TEXT("Health left %f"), Health);

	if (IsDead())
	{
		ASimpleShooterGameModeBase *GameMode = GetWorld()->GetAuthGameMode<ASimpleShooterGameModeBase>();
		if (GameMode != nullptr)
		{
			GameMode->PawnKilled(this);
		}

		DetachFromControllerPendingDestroy();
		GetCapsuleComponent()->SetCollisionEnabled(ECollisionEnabled::NoCollision);
	}

	return DamageToApply;
}

void AShooterCharacter::MoveForward(float AxisValue) 
{
	AddMovementInput(GetActorForwardVector() * AxisValue);
}

void AShooterCharacter::MoveRight(float AxisValue) 
{
	AddMovementInput(GetActorRightVector() * AxisValue);
}

void AShooterCharacter::LookUpRate(float AxisValue) 
{
	AddControllerPitchInput(AxisValue * RotationRate * GetWorld()->GetDeltaSeconds());
}

void AShooterCharacter::LookRightRate(float AxisValue) 
{
	AddControllerYawInput(AxisValue * RotationRate * GetWorld()->GetDeltaSeconds());
}

void AShooterCharacter::Shoot() 
{
	ActiveGun->PullTrigger();
}

[Ezra_Haagen]

the error message in question

[YungBeke]

Did you change the name of the ActiveGun or any pointer whilst having the unreal engine editor open?

[Ezra_Haagen]

I don’t think so

[Ezra_Haagen]

ActiveGun was a Nullptr, problem solved.

[beegeedee]

I wrote a reply saying that then saw you’d actually posted that. Sometimes the line number is off by 1 line so it was probably the line above that caused the issue.