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I'm following the Unreal Programming Quick Start guide
I've copied and pasted the code samples at the bottom of the guide. I've tried using both VS2019 and VSCode, and both give me the same errors:
UStaticMeshComponent *AFloatingActor::VisualMesh
pointer to incomplete class type is not allowed
static <error-type> UStaticMesh
name followed by '::' must be a class or namespace name
and a couple more...
When I compile in Unreal Engine, it compiles with 0 errors and works as intended.
Is there any way to fix these false errors and continue to use Intellisense / get code completion?
I really just want to be able to see the member funcs and definitions for components I'm using as I'm new to Unreal.
This is the code from the guide, as I have it in my source for this demo project:
FloatingActor.h
// Fill out your copyright notice in the Description page of Project Settings.
#pragma once
#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "FloatingActor.generated.h"
UCLASS()
class CPPTUTORIAL_API AFloatingActor : public AActor
{
UPROPERTY(VisibleAnywhere)
UStaticMeshComponent* VisualMesh;
GENERATED_BODY()
public:
// Sets default values for this actor's properties
AFloatingActor();
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FloatingActor")
float FloatHeight = 20.0f;
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FloatingActor")
float RotationSpeed = 20.0f;
protected:
// Called when the game starts or when spawned
virtual void BeginPlay() override;
public:
// Called every frame
virtual void Tick(float DeltaTime) override;
};
FloatingActor.cpp
#include "FloatingActor.h"
// Sets default values
AFloatingActor::AFloatingActor()
{
// Set this actor to call Tick() every frame. You can turn this off to improve performance if you don't need it.
PrimaryActorTick.bCanEverTick = true;
VisualMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Mesh"));
VisualMesh->SetupAttachment(RootComponent);
static ConstructorHelpers::FObjectFinder<UStaticMesh> CubeVisualAsset(TEXT("/Game/StarterContent/Shapes/Shape_Cube.Shape_Cube"));
if (CubeVisualAsset.Succeeded())
{
VisualMesh->SetStaticMesh(CubeVisualAsset.Object);
VisualMesh->SetRelativeLocation(FVector(0.0f, 0.0f, 0.0f));
}
}
// Called when the game starts or when spawned
void AFloatingActor::BeginPlay()
{
Super::BeginPlay();
}
// Called every frame
void AFloatingActor::Tick(float DeltaTime)
{
Super::Tick(DeltaTime);
FVector NewLocation = GetActorLocation();
FRotator NewRotation = GetActorRotation();
float RunningTime = GetGameTimeSinceCreation();
float DeltaHeight = (FMath::Sin(RunningTime + DeltaTime) - FMath::Sin(RunningTime));
NewLocation.Z += DeltaHeight * FloatHeight; //Scale our height by a factor of 20
float DeltaRotation = DeltaTime * RotationSpeed; //Rotate by 20 degrees per second
NewRotation.Yaw += DeltaRotation;
SetActorLocationAndRotation(NewLocation, NewRotation);
}
257
Open up your code editor and rebuild the project. Your code should be free of any Intellisense errors. You don't have to wait to code if you don't want. You may see slowness/errors though until it's finished. Once the long Intellisense init is finished I'd close and reopen VS to refresh it.
Changed to a different way of checking for UE's Version.h; Changed al… VSCode Extension supports Unreal Engine v4.25 / v4.26.1+ / and v5.0.0+ WARNING: 3.1.0+ changes the way this extension's 'enableOptionalFixes' optimization setting works. Enabling UE optimization disables red squiggle compiling for the Unreal Engine source code.
Now go to your project folder and right click on your Unreal Engine Project File. Choose Generate Visual Studio Project Files. (Even though it's says Visual Studio it'll still work with VSCode as long as that's what's set in the UE4 Editor) This way is a little annoying because it will reset some IDE (Visual Studio) settings/config files.
If using Visual Studio's (IDE) Intellisense Engine with VSCode it might act the same) You can always delete this setting if you want to go back to default. Step 5. This step should be rare.
this error causes due to not defied in c_cpp_properties.json add this code in between "defines": [], of c_cpp_properties.json
ping me back if any problem occurs
if you get any headers issue like #pragma once follow this post : https://github.com/microsoft/vscode-cpptools/issues/3952
"defines": [
"IS_PROGRAM=0",
"UE_EDITOR=1",
"ENABLE_PGO_PROFILE=0",
"USE_VORBIS_FOR_STREAMING=1",
"USE_XMA2_FOR_STREAMING=1",
"WITH_DEV_AUTOMATION_TESTS=1",
"WITH_PERF_AUTOMATION_TESTS=1",
"UNICODE",
"_UNICODE",
"__UNREAL__",
"IS_MONOLITHIC=0",
"WITH_ENGINE=1",
"WITH_UNREAL_DEVELOPER_TOOLS=1",
"WITH_APPLICATION_CORE=1",
"WITH_COREUOBJECT=1",
"USE_STATS_WITHOUT_ENGINE=0",
"WITH_PLUGIN_SUPPORT=0",
"WITH_ACCESSIBILITY=1",
"WITH_PERFCOUNTERS=1",
"USE_LOGGING_IN_SHIPPING=0",
"WITH_LOGGING_TO_MEMORY=0",
"USE_CACHE_FREED_OS_ALLOCS=1",
"USE_CHECKS_IN_SHIPPING=0",
"WITH_EDITOR=1",
"WITH_SERVER_CODE=1",
"WITH_CEF3=1",
"WITH_LIVE_CODING=1",
"WITH_XGE_CONTROLLER=1",
"UBT_MODULE_MANIFEST=\"UE4Editor.modules\"",
"UBT_MODULE_MANIFEST_DEBUGGAME=\"UE4Editor-Win64-DebugGame.modules\"",
"UBT_COMPILED_PLATFORM=Win64",
"UBT_COMPILED_TARGET=Editor",
"UE_APP_NAME=\"UE4Editor\"",
"NDIS_MINIPORT_MAJOR_VERSION=0",
"WIN32=1",
"_WIN32_WINNT=0x0601",
"WINVER=0x0601",
"PLATFORM_WINDOWS=1",
"OVERRIDE_PLATFORM_HEADER_NAME=Windows",
"NDEBUG=1",
"UE_BUILD_DEVELOPMENT=1",
"UE_IS_ENGINE_MODULE=0",
"IMPLEMENT_ENCRYPTION_KEY_REGISTRATION()=",
"IMPLEMENT_SIGNING_KEY_REGISTRATION()=",
"DEPRECATED_FORGAME=DEPRECATED",
"UE_DEPRECATED_FORGAME=UE_DEPRECATED",
"INCLUDE_CHAOS=0",
"WITH_PHYSX=1",
"WITH_CHAOS=0",
"WITH_CHAOS_CLOTHING=0",
"WITH_CHAOS_NEEDS_TO_BE_FIXED=0",
"PHYSICS_INTERFACE_PHYSX=1",
"WITH_APEX=1",
"WITH_APEX_CLOTHING=1",
"WITH_CLOTH_COLLISION_DETECTION=1",
"WITH_PHYSX_COOKING=1",
"WITH_NVCLOTH=1",
"WITH_CUSTOM_SQ_STRUCTURE=0",
"WITH_IMMEDIATE_PHYSX=0",
"GPUPARTICLE_LOCAL_VF_ONLY=0",
"ENGINE_VTABLE=DLLIMPORT_VTABLE",
"ENGINE_API=",
"UE_ENABLE_ICU=1",
"WITH_VS_PERF_PROFILER=0",
"WITH_DIRECTXMATH=0",
"WITH_MALLOC_STOMP=1",
"CORE_VTABLE=DLLIMPORT_VTABLE",
"CORE_API=",
"TRACELOG_VTABLE=DLLIMPORT_VTABLE",
"TRACELOG_API=",
"COREUOBJECT_VTABLE=DLLIMPORT_VTABLE",
"COREUOBJECT_API=",
"NETCORE_VTABLE=DLLIMPORT_VTABLE",
"NETCORE_API=",
"APPLICATIONCORE_VTABLE=DLLIMPORT_VTABLE",
"APPLICATIONCORE_API=",
"RHI_VTABLE=DLLIMPORT_VTABLE",
"RHI_API=",
"JSON_VTABLE=DLLIMPORT_VTABLE",
"JSON_API=",
"WITH_FREETYPE=1",
"SLATECORE_VTABLE=DLLIMPORT_VTABLE",
"SLATECORE_API=",
"INPUTCORE_VTABLE=DLLIMPORT_VTABLE",
"INPUTCORE_API=",
"SLATE_VTABLE=DLLIMPORT_VTABLE",
"SLATE_API=",
"WITH_UNREALPNG=1",
"WITH_UNREALJPEG=1",
"WITH_UNREALEXR=1",
"IMAGEWRAPPER_VTABLE=DLLIMPORT_VTABLE",
"IMAGEWRAPPER_API=",
"MESSAGING_VTABLE=DLLIMPORT_VTABLE",
"MESSAGING_API=",
"MESSAGINGCOMMON_VTABLE=DLLIMPORT_VTABLE",
"MESSAGINGCOMMON_API=",
"RENDERCORE_VTABLE=DLLIMPORT_VTABLE",
"RENDERCORE_API=",
"SOCKETS_PACKAGE=1",
"SOCKETS_VTABLE=DLLIMPORT_VTABLE",
"SOCKETS_API=",
"ASSETREGISTRY_VTABLE=DLLIMPORT_VTABLE",
"ASSETREGISTRY_API=",
"ENGINEMESSAGES_VTABLE=DLLIMPORT_VTABLE",
"ENGINEMESSAGES_API=",
"ENGINESETTINGS_VTABLE=DLLIMPORT_VTABLE",
"ENGINESETTINGS_API=",
"SYNTHBENCHMARK_VTABLE=DLLIMPORT_VTABLE",
"SYNTHBENCHMARK_API=",
"RENDERER_VTABLE=DLLIMPORT_VTABLE",
"RENDERER_API=",
"GAMEPLAYTAGS_VTABLE=DLLIMPORT_VTABLE",
"GAMEPLAYTAGS_API=",
"PACKETHANDLER_VTABLE=DLLIMPORT_VTABLE",
"PACKETHANDLER_API=",
"RELIABILITYHANDLERCOMPONENT_VTABLE=DLLIMPORT_VTABLE",
"RELIABILITYHANDLERCOMPONENT_API=",
"AUDIOPLATFORMCONFIGURATION_VTABLE=DLLIMPORT_VTABLE",
"AUDIOPLATFORMCONFIGURATION_API=",
"MESHDESCRIPTION_VTABLE=DLLIMPORT_VTABLE",
"MESHDESCRIPTION_API=",
"STATICMESHDESCRIPTION_VTABLE=DLLIMPORT_VTABLE",
"STATICMESHDESCRIPTION_API=",
"PAKFILE_VTABLE=DLLIMPORT_VTABLE",
"PAKFILE_API=",
"RSA_VTABLE=DLLIMPORT_VTABLE",
"RSA_API=",
"NETWORKREPLAYSTREAMING_VTABLE=DLLIMPORT_VTABLE",
"NETWORKREPLAYSTREAMING_API=",
"PHYSICSCORE_VTABLE=DLLIMPORT_VTABLE",
"PHYSICSCORE_API=",
"COMPILE_WITHOUT_UNREAL_SUPPORT=0",
"CHAOS_MEMORY_TRACKING=0",
"CHAOS_VTABLE=DLLIMPORT_VTABLE",
"CHAOS_API=",
"CHAOS_CHECKED=0",
"CHAOSCORE_VTABLE=DLLIMPORT_VTABLE",
"CHAOSCORE_API=",
"INTEL_ISPC=1",
"VORONOI_VTABLE=DLLIMPORT_VTABLE",
"VORONOI_API=",
"FIELDSYSTEMCORE_VTABLE=DLLIMPORT_VTABLE",
"FIELDSYSTEMCORE_API=",
"WITH_PHYSX_RELEASE=0",
"UE_PHYSX_SUFFIX=PROFILE",
"UE_APEX_SUFFIX=PROFILE",
"APEX_UE4=1",
"APEX_STATICALLY_LINKED=0",
"WITH_APEX_LEGACY=1",
"SIGNALPROCESSING_VTABLE=DLLIMPORT_VTABLE",
"SIGNALPROCESSING_API=",
"WITH_RECAST=1",
"UNREALED_VTABLE=DLLIMPORT_VTABLE",
"UNREALED_API=",
"BSPMODE_VTABLE=DLLIMPORT_VTABLE",
"BSPMODE_API=",
"DIRECTORYWATCHER_VTABLE=DLLIMPORT_VTABLE",
"DIRECTORYWATCHER_API=",
"DOCUMENTATION_VTABLE=DLLIMPORT_VTABLE",
"DOCUMENTATION_API=",
"LOAD_PLUGINS_FOR_TARGET_PLATFORMS=1",
"PROJECTS_VTABLE=DLLIMPORT_VTABLE",
"PROJECTS_API=",
"SANDBOXFILE_VTABLE=DLLIMPORT_VTABLE",
"SANDBOXFILE_API=",
"EDITORSTYLE_VTABLE=DLLIMPORT_VTABLE",
"EDITORSTYLE_API=",
"SOURCE_CONTROL_WITH_SLATE=1",
"SOURCECONTROL_VTABLE=DLLIMPORT_VTABLE",
"SOURCECONTROL_API=",
"UNREALEDMESSAGES_VTABLE=DLLIMPORT_VTABLE",
"UNREALEDMESSAGES_API=",
"GAMEPLAYDEBUGGER_VTABLE=DLLIMPORT_VTABLE",
"GAMEPLAYDEBUGGER_API=",
"BLUEPRINTGRAPH_VTABLE=DLLIMPORT_VTABLE",
"BLUEPRINTGRAPH_API=",
"EDITORSUBSYSTEM_VTABLE=DLLIMPORT_VTABLE",
"EDITORSUBSYSTEM_API=",
"HTTP_PACKAGE=1",
"CURL_ENABLE_DEBUG_CALLBACK=1",
"CURL_ENABLE_NO_TIMEOUTS_OPTION=1",
"HTTP_VTABLE=DLLIMPORT_VTABLE",
"HTTP_API=",
"UNREALAUDIO_VTABLE=DLLIMPORT_VTABLE",
"UNREALAUDIO_API=",
"FUNCTIONALTESTING_VTABLE=DLLIMPORT_VTABLE",
"FUNCTIONALTESTING_API=",
"AUTOMATIONCONTROLLER_VTABLE=DLLIMPORT_VTABLE",
"AUTOMATIONCONTROLLER_API=",
"LOCALIZATION_VTABLE=DLLIMPORT_VTABLE",
"LOCALIZATION_API=",
"WITH_SNDFILE_IO=1",
"AUDIOEDITOR_VTABLE=DLLIMPORT_VTABLE",
"AUDIOEDITOR_API=",
"AUDIOMIXER_VTABLE=DLLIMPORT_VTABLE",
"AUDIOMIXER_API=",
"TARGETPLATFORM_VTABLE=DLLIMPORT_VTABLE",
"TARGETPLATFORM_API=",
"UELIBSAMPLERATE_VTABLE=DLLIMPORT_VTABLE",
"UELIBSAMPLERATE_API=",
"LEVELEDITOR_VTABLE=DLLIMPORT_VTABLE",
"LEVELEDITOR_API=",
"SETTINGS_VTABLE=DLLIMPORT_VTABLE",
"SETTINGS_API=",
"INTROTUTORIALS_VTABLE=DLLIMPORT_VTABLE",
"INTROTUTORIALS_API=",
"HEADMOUNTEDDISPLAY_VTABLE=DLLIMPORT_VTABLE",
"HEADMOUNTEDDISPLAY_API=",
"VREDITOR_VTABLE=DLLIMPORT_VTABLE",
"VREDITOR_API=",
"COMMONMENUEXTENSIONS_VTABLE=DLLIMPORT_VTABLE",
"COMMONMENUEXTENSIONS_API=",
"LANDSCAPE_VTABLE=DLLIMPORT_VTABLE",
"LANDSCAPE_API=",
"PROPERTYEDITOR_VTABLE=DLLIMPORT_VTABLE",
"PROPERTYEDITOR_API=",
"ACTORPICKERMODE_VTABLE=DLLIMPORT_VTABLE",
"ACTORPICKERMODE_API=",
"SCENEDEPTHPICKERMODE_VTABLE=DLLIMPORT_VTABLE",
"SCENEDEPTHPICKERMODE_API=",
"DETAILCUSTOMIZATIONS_VTABLE=DLLIMPORT_VTABLE",
"DETAILCUSTOMIZATIONS_API=",
"CLASSVIEWER_VTABLE=DLLIMPORT_VTABLE",
"CLASSVIEWER_API=",
"GRAPHEDITOR_VTABLE=DLLIMPORT_VTABLE",
"GRAPHEDITOR_API=",
"STRUCTVIEWER_VTABLE=DLLIMPORT_VTABLE",
"STRUCTVIEWER_API=",
"CONTENTBROWSER_VTABLE=DLLIMPORT_VTABLE",
"CONTENTBROWSER_API=",
"ENABLE_HTTP_FOR_NFS=1",
"NETWORKFILESYSTEM_VTABLE=DLLIMPORT_VTABLE",
"NETWORKFILESYSTEM_API=",
"UMG_VTABLE=DLLIMPORT_VTABLE",
"UMG_API=",
"MOVIESCENE_VTABLE=DLLIMPORT_VTABLE",
"MOVIESCENE_API=",
"TIMEMANAGEMENT_VTABLE=DLLIMPORT_VTABLE",
"TIMEMANAGEMENT_API=",
"MOVIESCENETRACKS_VTABLE=DLLIMPORT_VTABLE",
"MOVIESCENETRACKS_API=",
"ANIMATIONCORE_VTABLE=DLLIMPORT_VTABLE",
"ANIMATIONCORE_API=",
"PROPERTYPATH_VTABLE=DLLIMPORT_VTABLE",
"PROPERTYPATH_API=",
"NAVIGATIONSYSTEM_VTABLE=DLLIMPORT_VTABLE",
"NAVIGATIONSYSTEM_API=",
"MESHDESCRIPTIONOPERATIONS_VTABLE=DLLIMPORT_VTABLE",
"MESHDESCRIPTIONOPERATIONS_API=",
"MESHBUILDER_VTABLE=DLLIMPORT_VTABLE",
"MESHBUILDER_API=",
"MATERIALSHADERQUALITYSETTINGS_VTABLE=DLLIMPORT_VTABLE",
"MATERIALSHADERQUALITYSETTINGS_API=",
"INTERACTIVETOOLSFRAMEWORK_VTABLE=DLLIMPORT_VTABLE",
"INTERACTIVETOOLSFRAMEWORK_API=",
"TOOLMENUSEDITOR_VTABLE=DLLIMPORT_VTABLE",
"TOOLMENUSEDITOR_API=",
"WITH_OGGVORBIS=1",
"XAUDIO2_VTABLE=DLLIMPORT_VTABLE",
"XAUDIO2_API=",
"AUDIOMIXERXAUDIO2_VTABLE=DLLIMPORT_VTABLE",
"AUDIOMIXERXAUDIO2_API=",
"ASSETTAGSEDITOR_VTABLE=DLLIMPORT_VTABLE",
"ASSETTAGSEDITOR_API=",
"COLLECTIONMANAGER_VTABLE=DLLIMPORT_VTABLE",
"COLLECTIONMANAGER_API=",
"ADDCONTENTDIALOG_VTABLE=DLLIMPORT_VTABLE",
"ADDCONTENTDIALOG_API=",
"USE_EMBREE=1",
"MESHUTILITIES_VTABLE=DLLIMPORT_VTABLE",
"MESHUTILITIES_API=",
"MESHMERGEUTILITIES_VTABLE=DLLIMPORT_VTABLE",
"MESHMERGEUTILITIES_API=",
"HIERARCHICALLODUTILITIES_VTABLE=DLLIMPORT_VTABLE",
"HIERARCHICALLODUTILITIES_API=",
"MESHREDUCTIONINTERFACE_VTABLE=DLLIMPORT_VTABLE",
"MESHREDUCTIONINTERFACE_API=",
"ASSETTOOLS_VTABLE=DLLIMPORT_VTABLE",
"ASSETTOOLS_API=",
"KISMETCOMPILER_VTABLE=DLLIMPORT_VTABLE",
"KISMETCOMPILER_API=",
"GAMEPLAYTASKS_VTABLE=DLLIMPORT_VTABLE",
"GAMEPLAYTASKS_API=",
"WITH_GAMEPLAY_DEBUGGER=1",
"AIMODULE_VTABLE=DLLIMPORT_VTABLE",
"AIMODULE_API=",
"KISMET_VTABLE=DLLIMPORT_VTABLE",
"KISMET_API=",
"PHYSICSSQ_VTABLE=DLLIMPORT_VTABLE",
"PHYSICSSQ_API=",
"CHAOSSOLVERS_VTABLE=DLLIMPORT_VTABLE",
"CHAOSSOLVERS_API=",
"GEOMETRYCOLLECTIONCORE_VTABLE=DLLIMPORT_VTABLE",
"GEOMETRYCOLLECTIONCORE_API=",
"GEOMETRYCOLLECTIONSIMULATIONCORE_VTABLE=DLLIMPORT_VTABLE",
"GEOMETRYCOLLECTIONSIMULATIONCORE_API=",
"CLOTHINGSYSTEMRUNTIMEINTERFACE_VTABLE=DLLIMPORT_VTABLE",
"CLOTHINGSYSTEMRUNTIMEINTERFACE_API=",
"AUDIOMIXERCORE_VTABLE=DLLIMPORT_VTABLE",
"AUDIOMIXERCORE_API=",
"UE_PROJECT_NAME=FPSCpp",
"FPSCPP_VTABLE=DLLEXPORT_VTABLE",
"FPSCPP_API="
],
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