"SourceModels"不是"UStaticMesh"的成员？

[张朝锐]

我用代码动态创建了一个StaticMesh, 可以成功的编译和运行，但是我尝试打包的时候提示错误。
代码如下：

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

#include "pjStaticMesh.h"
#include "MyActor.h"
#include "RawMesh.h"


// Sets default values
AMyActor::AMyActor()
{
 	// 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;
	UStaticMeshComponent* c1 = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("StaticMeshComponent1"));
	UStaticMesh* m1 = NewObject<UStaticMesh>();
	new (m1->SourceModels) FStaticMeshSourceModel();
	FStaticMeshSourceModel& SrcModel = m1->SourceModels[0];
	m1->LightingGuid = FGuid::NewGuid();
	m1->LightMapResolution = 64;
	m1->LightMapCoordinateIndex = 1;
	FRawMesh NewRawMesh;
	SrcModel.RawMeshBulkData->LoadRawMesh(NewRawMesh);
	NewRawMesh.FaceMaterialIndices.Add(0);
	NewRawMesh.FaceMaterialIndices.Add(1);
	NewRawMesh.FaceSmoothingMasks.AddZeroed(2);
	NewRawMesh.VertexPositions.Add(FVector(0, 0, 0));
	NewRawMesh.VertexPositions.Add(FVector(1000, 1000, 0));
	NewRawMesh.VertexPositions.Add(FVector(1000, 0, 0));
	NewRawMesh.VertexPositions.Add(FVector(0, 1000, 0));
	NewRawMesh.VertexPositions.Add(FVector(1000, 1000, 0));
	NewRawMesh.VertexPositions.Add(FVector(0, 0, 0));
	//NewRawMesh.WedgeColors.Add(FColor::White);
	//NewRawMesh.WedgeColors.Add(FColor::Green);
	//NewRawMesh.WedgeColors.Add(FColor::Red);
	//NewRawMesh.WedgeColors.Add(FColor::Blue);
	//NewRawMesh.WedgeColors.Add(FColor::Green);
	//NewRawMesh.WedgeColors.Add(FColor::White);
	NewRawMesh.WedgeIndices.Add(0);
	NewRawMesh.WedgeIndices.Add(1);
	NewRawMesh.WedgeIndices.Add(2);
	NewRawMesh.WedgeIndices.Add(3);
	NewRawMesh.WedgeIndices.Add(4);
	NewRawMesh.WedgeIndices.Add(5);
	NewRawMesh.WedgeTexCoords[0].Add(FVector2D(0, 0));
	NewRawMesh.WedgeTexCoords[0].Add(FVector2D(10, 10));
	NewRawMesh.WedgeTexCoords[0].Add(FVector2D(10, 0));
	NewRawMesh.WedgeTexCoords[0].Add(FVector2D(0, 10));
	NewRawMesh.WedgeTexCoords[0].Add(FVector2D(10, 10));
	NewRawMesh.WedgeTexCoords[0].Add(FVector2D(0, 0));
	//NewRawMesh.WedgeTangentX.AddZeroed(6);
	//NewRawMesh.WedgeTangentY.AddZeroed(6);
	//NewRawMesh.WedgeTangentZ.AddZeroed(6);
	//NewRawMesh.WedgeTangentZ.Add(FVector(0, 0, 1));
	//NewRawMesh.WedgeTangentZ.Add(FVector(0, 0, 1));
	//NewRawMesh.WedgeTangentZ.Add(FVector(0, 0, 1));
	//NewRawMesh.WedgeTangentZ.Add(FVector(0, 0, 1));
	//NewRawMesh.WedgeTangentZ.Add(FVector(0, 0, 1));
	//NewRawMesh.WedgeTangentZ.Add(FVector(0, 0, 1));
	SrcModel.RawMeshBulkData->SaveRawMesh(NewRawMesh);
	static ConstructorHelpers::FObjectFinder<UMaterial> mat1(TEXT("/Game/StarterContent/Materials/M_Brick_Clay_New.M_Brick_Clay_New"));
	if (mat1.Succeeded())
	{
		m1->Materials.Add(mat1.Object);
	}
	static ConstructorHelpers::FObjectFinder<UMaterial> mat2(TEXT("/Game/StarterContent/Materials/M_CobbleStone_Rough.M_CobbleStone_Rough"));
	if (mat2.Succeeded())
	{
		m1->Materials.Add(mat2.Object);
	}

	TArray<FText> BuildErrors;
	m1->Build(false, &BuildErrors);

	c1->SetStaticMesh(m1);
	c1->SetRelativeLocation(FVector(0.0f, 0.0f, -40.0f));
	c1->SetWorldScale3D(FVector(1.f));
}

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

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

}

运行效果如下：

错误提示如下：


请问有人遇到过类似的问题吗？要怎么解决？