Can't compile my code in UE4

AMyPawn::AMyPawn()
{
// Set this pawn to call Tick() every frame. You can turn this off to improve performance if you don’t need it.
PrimaryActorTick.bCanEverTick = true;

// Set this pawn to be controlled by the lowest-numbered player
AutoPossessPlayer = EAutoReceiveInput::Player0;

// Create a dummy root component we can attach things to.
RootComponent = CreateDefaultSubobject<USceneComponent>(TEXT("RootComponent"));
// Create a camera and a visible object
UCameraComponent* OurCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("OurCamera"));
OurVisibleComponent = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("OurVisibleComponent"));
// Attach our camera and visible object to our root component. Offset and rotate the camera.
OurCamera->SetupAttachment(RootComponent);
OurCamera->SetRelativeLocation(FVector(-250.0f, 0.0f, 250.0f));
OurCamera->SetRelativeRotation(FRotator(-45.0f, 0.0f, 0.0f));
OurVisibleComponent->SetupAttachment(RootComponent);

}

In this line " UCameraComponent* OurCamera = CreateDefaultSubobject(TEXT(“OurCamera”)); "
the vs2015 said UCameraComponent and OurCamera are not be defined, and said there is not overloaded function that matches the parameter list.
Can not assign an “OurVisibleComponent” type value to an entity of type “CreateDefaultSubobject”

// Called to bind functionality to input
void AMyPawn::SetupPlayerInputComponent(class UInputComponent* InputComponent)
{
Super::SetupPlayerInputComponent(InputComponent);

// Respond when our "Grow" key is pressed or released.
InputComponent->BindAction("Grow", IE_Pressed, this, &AMyPawn::StartGrowing);
InputComponent->BindAction("Grow", IE_Released, this, &AMyPawn::StopGrowing);

// Respond every frame to the values of our two movement axes, "MoveX" and "MoveY".
InputComponent->BindAxis("MoveX", this, &AMyPawn::Move_XAxis);
InputComponent->BindAxis("MoveY", this, &AMyPawn::Move_YAxis);

}
In this section, vs2015 said “InputCompponent” have something wrong, the pointer is not allowed to point to an incomplete class type.

But all of these code is the same as the code in UE Documentation, what happened???