Recompiled for Mac but can't package: Failed to cook...It imports class...which is in a module that is not available on the platform

michaelgarydean · November 28, 2022, 10:53pm

Hi all,

I compiled a version of a plugin that is originally for Windows on my Mac using Mac (Rosetta) on Mac M1 with Xcode 13.4.1 with macOS 12.2.1.

Original plugin:

It works fine in the editor but when I try to package a project, it says:
“UATHelper: Cooking (IOS): LogCook: Error: Failed to cook for platform IOS. It imports class /Script/NiagaraUIRenderer.NiagaraSystemWidget, which is in a module that is not available on the platform.”

Would anyone know what might be causing this? I checked the .cpp files but nothing stood out for me. I’ve posted them below.

NiagaraSystemWidget.h:

github.com

michaelgarydean/NiagaraUIRenderer-Mac/blob/master/Source/NiagaraUIRenderer/Public/NiagaraSystemWidget.h

// Copyright 2022 - Michal Smoleň

#pragma once

#include "CoreMinimal.h"
#include "NiagaraWidgetProperties.h"
#include "Runtime/UMG/Public/Components/Widget.h"
#include "NiagaraSystemWidget.generated.h"

class SNiagaraUISystemWidget;
class UMaterialInterface;

/**
 The Niagara System Widget allows to render niagara particle system directly into the UI. Only sprite and ribbon CPU particles are supported.
 */
UCLASS()
class NIAGARAUIRENDERER_API UNiagaraSystemWidget : public UWidget
{
	GENERATED_BODY()

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NiagaraSystemWidget.cpp

github.com

michaelgarydean/NiagaraUIRenderer-Mac/blob/master/Source/NiagaraUIRenderer/Private/NiagaraSystemWidget.cpp

// Copyright 2022 - Michal Smoleň

#include "NiagaraSystemWidget.h"
#include "SNiagaraUISystemWidget.h"
#include "Materials/MaterialInterface.h"
#include "NiagaraUIActor.h"
#include "NiagaraUIComponent.h"

UNiagaraSystemWidget::UNiagaraSystemWidget(const FObjectInitializer& ObjectInitializer) : Super(ObjectInitializer)
{
	bIsVolatile = true;
}

TSharedRef<SWidget> UNiagaraSystemWidget::RebuildWidget()
{
	NiagaraSlateWidget = SNew(SNiagaraUISystemWidget);

	InitializeNiagaraUI();

	return NiagaraSlateWidget.ToSharedRef();

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Download Mac build:

Aux010 · June 8, 2023, 12:15pm

Hi,

Where you able to solve this ?

Same problem here with the same plugin.

michaelgarydean · July 17, 2023, 12:38pm

I did, but I don’t recall doing anything special. If you’re looking for the Mac/iOS version of this particular plugin, I posted it here:

system · August 16, 2023, 12:38pm

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