[FIXED] Can't compile plugin with Component Visualizers

Development Pipeline & Plugins Plugins
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1

I’ve been making a standalone plugin and following this tutorial to use Component Visualizers with it: A new, community-hosted Unreal Engine Wiki - Announcements - Unreal Engine Forums

The tutorial is for editor modules but I think most of the code should be the same. Anyway, the plugin was compiling and working ok until I added Component Visualizers to it, now it doesn’ t compile and give me this error:

2>C:\Program Files\Epic Games\4.10\Engine\Source\Editor\UnrealEd\Public\ComponentVisualizer.h(38): error C2061: syntax error: identifier ‘FLevelEditorViewportClient’
2>C:\Program Files\Epic Games\4.10\Engine\Source\Editor\UnrealEd\Public\ComponentVisualizer.h(42): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>C:\Program Files\Epic Games\4.10\Engine\Source\Editor\UnrealEd\Public\ComponentVisualizer.h(42): error C2143: syntax error: missing ‘,’ before ‘’
2>C:\Program Files\Epic Games\4.10\Engine\Source\Editor\UnrealEd\Public\ComponentVisualizer.h(44): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>C:\Program Files\Epic Games\4.10\Engine\Source\Editor\UnrealEd\Public\ComponentVisualizer.h(44): error C2143: syntax error: missing ‘,’ before '’
2>C:\Program Files\Epic Games\4.10\Engine\Source\Editor\UnrealEd\Public\ComponentVisualizer.h(46): error C2061: syntax error: identifier ‘FEditorViewportClient’
2>C:\Program Files\Epic Games\4.10\Engine\Source\Editor\UnrealEd\Public\ComponentVisualizer.h(48): error C2061: syntax error: identifier ‘FEditorViewportClient’

Those are engine classes and I’m sure there’s nothing wrong with them, looking into my own classes I found nothing wrong in them either so I’m thinking that I should be loading some module that I’m missing. Here’s my Build.cs file:

        PublicDependencyModuleNames.AddRange(
                new string[] {
                    "Engine",
                    "UnrealEd",
                    "InputCore",
                    "Core",
                    "EditorStyle",
                    "CoreUObject",
                    "Landscape",
                    "ComponentVisualizers"
                }
            );

        PrivateDependencyModuleNames.AddRange(
                new string[] {
                    "Engine",
                    "UnrealEd",
                    "InputCore",
                    "Core",
                    "EditorStyle",
                    "CoreUObject",
                    "Landscape",
                    "ComponentVisualizers"
                }
            );

Just threw every module I could think of in there and it’s still giving me that error. Please help. :confused:

Thanks in advance.

FIXED IT

I had to include “UnrealEd.h” to my code and the CoreUObject module to the Build.cs file. Everything seems to be working now.

Thanks for the help.

2

Can you post the contents of the file that includes ComponentVisualizer.h?

3

From the looks of it, your ComponentVisualizer has something that’s not included:

error C2061: syntax error: identifier 'FEditorViewportClient' 2>C:\Program Files\Epic Games\4.10\Engine\Source\Editor\UnrealEd\Public\ComponentVisualizer.h(48): error C2061: syntax error: identifier 'FEditorViewportClient'

Maybe you need to look at the generated file?

4

I can but ComponentVisualizer.h is a file from the engine so it shouldn’t have any problems.

5

What generated file you’re talking about?

6

Improper includes can make the error appear to come from other files.

7

Ok.

#pragma once

#include "ComponentVisualizer.h"
#include "AutoUpdateSplineComponent.h"


/**Base class for clickable targeting editing proxies*/
struct HTargetingVisProxy : public HComponentVisProxy
{
	DECLARE_HIT_PROXY();

	HTargetingVisProxy(const UActorComponent* InComponent)
		: HComponentVisProxy(InComponent, HPP_Wireframe)
	{}
};

/**Proxy for target*/
struct HTargetProxy : public HTargetingVisProxy
{
	DECLARE_HIT_PROXY();

	HTargetProxy(const UActorComponent* InComponent, int32 InTargetIndex)
		: HTargetingVisProxy(InComponent)
		, TargetIndex(InTargetIndex)
	{}

	int32 TargetIndex;
};

class FSplineVisualizer : public FComponentVisualizer
{
public:
	FSplineVisualizer();
	virtual ~FSplineVisualizer();

	virtual void DrawVisualization(const UActorComponent* Component, const FSceneView* View, FPrimitiveDrawInterface* PDI) override;
	
};