Keep getting the same error when I come to this video

[DnlAua]

I had to go back in my source control because I got an error on this video. After I went back and rewatched the videos to catch back up, I ran across the same error. Here’s the error:

CompilerResultsLog: ERROR: UBT ERROR: Failed to produce item: D:\Documents\Unreal Projects\BuildingEscape\Binaries\Win64\UE4Editor-BuildingEscape-1246.dll

Not sure what’s going on. I’m UE4 version 4.20. Anyone know how to fix this? I’ve googled but to no avail.

[DanM]

That just means it failed to compile and that could be for a million different reasons. Would need to attempt to compile in your IDE to see what the errors are.

[DnlAua]

Ok, so I found out it’s when I move the LineTraceEnd block to the TickComponent method. Any idea why it’s doing this?

TickComponent():

void UGrabber::TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction)
{
	Super::TickComponent(DeltaTime, TickType, ThisTickFunction);

	/// Get player view point this tick
	FVector PlayerViewPointLocation;
	FRotator PlayerViewPointRotation;
	GetWorld()->GetFirstPlayerController()->GetPlayerViewPoint(
		OUT PlayerViewPointLocation,
		OUT PlayerViewPointRotation);

	//Draw red trace in the world to visualize
	FVector LineTraceEnd = PlayerViewPointLocation + PlayerViewPointRotation.Vector() * Reach;

	// If physics handle is attached
		// move object that we're holding

}

GetFirstPhysicsBodyInReach():

const FHitResult UGrabber::GetFirstPhysicsBodyInReach()
{
	///Setup query parameters
	FCollisionQueryParams TraceParameters(FName(TEXT("")), false, GetOwner());

	///Line-trace (Aka ray-cast) out to reach distance
	FHitResult Hit;
	GetWorld()->LineTraceSingleByObjectType(
		OUT Hit,
		PlayerViewPointLocation,
		LineTraceEnd,
		FCollisionObjectQueryParams(ECollisionChannel::ECC_PhysicsBody),
		TraceParameters
	);

	///See what we hit
	AActor* ActorHit = Hit.GetActor();
	if (ActorHit)
	{
		UE_LOG(LogTemp, Warning, TEXT("Line trace hit: %s"), *(ActorHit->GetName()))
	}

	return Hit;
}

[DnlAua]

Figured it out. Had to copy the LineTraceEnd block instead of cut.