关于#UE4##InputComponent#的问题

UE4的InputComponent无法使用

cpp:

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

#include "MyCharacter.h"

// Sets default values
AMyCharacter::AMyCharacter()
{
     // Set this character to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
    PrimaryActorTick.bCanEverTick = true;

}

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

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

}

// Called to bind functionality to input
void AMyCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
    Super::SetupPlayerInputComponent(PlayerInputComponent);
    InputComponent->BindAxis("MoveForward", this, &AMyCharacter::MoveForward);
    InputComponent->BindAxis("MoveBack", this, &AMyCharacter::MoveBack);
    InputComponent->BindAxis("MoveRight", this, &AMyCharacter::MoveRight);
    InputComponent->BindAxis("MoveLeft", this, &AMyCharacter::MoveLeft);
    InputComponent->BindAxis("Turn", this, &APawn::AddControllerYawInput);
    InputComponent->BindAxis("LookUp", this, &APawn::AddControllerPitchInput);
}

void AMyCharacter::MoveForward(float val)
{
    AddMovementInput(GetActorForwardVector(), val);
}

void AMyCharacter::MoveBack(float val)
{
    AddMovementInput(-GetActorForwardVector(), val);
}

void AMyCharacter::MoveRight(float val)
{
    AddMovementInput(GetActorRightVector(), val);
}

void AMyCharacter::MoveLeft(float val)
{
    AddMovementInput(-GetActorRightVector(), val);
}

h:

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

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Character.h"
#include "MyCharacter.generated.h"

UCLASS()
class GAMEPROJECT_API AMyCharacter : public ACharacter
{
    GENERATED_BODY()

public:
    // Sets default values for this character's properties
    AMyCharacter();

protected:
    // Called when the game starts or when spawned
    virtual void BeginPlay() override;

public:    
    // Called every frame
    virtual void Tick(float DeltaTime) override;

    // Called to bind functionality to input
    virtual void SetupPlayerInputComponent(class UInputComponent* PlayerInputComponent) override;

    void MoveForward(float val);//人物往前移动
    void MoveBack(float val);    //人物向后
    void MoveRight(float val);    //人物向右
    void MoveLeft(float val);    //人物向左
};

在InputComponent的地方有红线，但是可以成功编译，编译过后那段代码不起作用（无法移动和旋转视角）

希望可以把character移动和旋转视角，让InputComponent有效