Error when running script in Unity CinemachineVirtualCamera not recognized

I am trying to add a scroll wheel zoom to the third person view starter asset available in the Unity Store, which uses Cinemachine. I have found a tutorial that took me through how to edit a script in the starter assets to do this. but when I run it I get an error that it does not recognize CinamachineVirtualCamera. I have Cinemachine installed and updated, and it is working on the script that came with the starter assets.

Troubleshooting steps taken:
(from forums I read online by people having similar problems)

  • Uninstalled/Reinstalled MS Visual Studio
  • Cleared MS Visual Studio cache
  • Uninstalled/Reinstalled Unity
  • Removed Cinemachine and deleted all it’s assets then reinstalled it
  • Deleted package (so many times)

yet I get still get the below error in Unity compiler when importing the script:

Assets\Starter Assets\Runtime\ThirdPersonController\Scripts\ThirdPersonController.cs(171,16): error CS0246: The type or namespace name ‘CinemachinVirtualCamera’ could not be found (are you missing a using directive or an assembly reference?)

I am using:

  • Unity 2022.3.36f1
  • MS Visual Studio 2022 17.10.3
  • Starter Assets: Character Controllers | URP 1.1.0 (from asset store, installed through package manager)
  • #Cinamachine 2.10.0 (installed with Starter Assets, also have tried uninstalling this and reinstalling directly from package manager

I am very new to all of this, but the project I want to build really needs to have a camera that zooms in and out while following the player.

Any help would be greatly appreciated.

using UnityEngine;
#if ENABLE_INPUT_SYSTEM
using UnityEngine.InputSystem;
#endif

/* Note: animations are called via the controller for both the character and capsule using animator null checks
 */

namespace StarterAssets
{
    [RequireComponent(typeof(CharacterController))]
#if ENABLE_INPUT_SYSTEM
    [RequireComponent(typeof(PlayerInput))]
#endif
    public class ThirdPersonController : MonoBehaviour
    {
        [Header("Player")]
        [Tooltip("Move speed of the character in m/s")]
        public float MoveSpeed = 2.0f;

        [Tooltip("Sprint speed of the character in m/s")]
        public float SprintSpeed = 5.335f;

        [Tooltip("How fast the character turns to face movement direction")]
        [Range(0.0f, 0.3f)]
        public float RotationSmoothTime = 0.12f;

        [Tooltip("Acceleration and deceleration")]
        public float SpeedChangeRate = 10.0f;

        public AudioClip LandingAudioClip;
        public AudioClip[] FootstepAudioClips;
        [Range(0, 1)] public float FootstepAudioVolume = 0.5f;

        [Space(10)]
        [Tooltip("The height the player can jump")]
        public float JumpHeight = 1.2f;

        [Tooltip("The character uses its own gravity value. The engine default is -9.81f")]
        public float Gravity = -15.0f;

        [Space(10)]
        [Tooltip("Time required to pass before being able to jump again. Set to 0f to instantly jump again")]
        public float JumpTimeout = 0.50f;

        [Tooltip("Time required to pass before entering the fall state. Useful for walking down stairs")]
        public float FallTimeout = 0.15f;

        [Header("Player Grounded")]
        [Tooltip("If the character is grounded or not. Not part of the CharacterController built in grounded check")]
        public bool Grounded = true;

        [Tooltip("Useful for rough ground")]
        public float GroundedOffset = -0.14f;

        [Tooltip("The radius of the grounded check. Should match the radius of the CharacterController")]
        public float GroundedRadius = 0.28f;

        [Tooltip("What layers the character uses as ground")]
        public LayerMask GroundLayers;

        [Header("Cinemachine")]
        [Tooltip("The follow target set in the Cinemachine Virtual Camera that the camera will follow")]
        public GameObject CinemachineCameraTarget;

        [Tooltip("How far in degrees can you move the camera up")]
        public float TopClamp = 70.0f;

        [Tooltip("How far in degrees can you move the camera down")]
        public float BottomClamp = -30.0f;

        [Tooltip("Additional degress to override the camera. Useful for fine tuning camera position when locked")]
        public float CameraAngleOverride = 0.0f;

        [Tooltip("For locking the camera position on all axis")]
        public bool LockCameraPosition = false;

        // cinemachine
        private float _cinemachineTargetYaw;
        private float _cinemachineTargetPitch;

        // player
        private float _speed;
        private float _animationBlend;
        private float _targetRotation = 0.0f;
        private float _rotationVelocity;
        private float _verticalVelocity;
        private float _terminalVelocity = 53.0f;

        // timeout deltatime
        private float _jumpTimeoutDelta;
        private float _fallTimeoutDelta;

        // animation IDs
        private int _animIDSpeed;
        private int _animIDGrounded;
        private int _animIDJump;
        private int _animIDFreeFall;
        private int _animIDMotionSpeed;

#if ENABLE_INPUT_SYSTEM
        private PlayerInput _playerInput;
#endif
        private Animator _animator;
        private CharacterController _controller;
        private StarterAssetsInputs _input;
        private GameObject _mainCamera;

        private const float _threshold = 0.01f;

        private bool _hasAnimator;

        private bool IsCurrentDeviceMouse
        {
            get
            {
#if ENABLE_INPUT_SYSTEM
                return _playerInput.currentControlScheme == "KeyboardMouse";
#else
                return false;
#endif
            }
        }


        private void Awake()
        {
            // get a reference to our main camera
            if (_mainCamera == null)
            {
                _mainCamera = GameObject.FindGameObjectWithTag("MainCamera");
            }
        }

        private void Start()
        {
            _cinemachineTargetYaw = CinemachineCameraTarget.transform.rotation.eulerAngles.y;

            _hasAnimator = TryGetComponent(out _animator);
            _controller = GetComponent<CharacterController>();
            _input = GetComponent<StarterAssetsInputs>();
#if ENABLE_INPUT_SYSTEM
            _playerInput = GetComponent<PlayerInput>();
#else
            Debug.LogError("Starter Assets package is missing dependencies. Please use Tools/Starter Assets/Reinstall Dependencies to fix it");
#endif

            AssignAnimationIDs();

            // reset our timeouts on start
            _jumpTimeoutDelta = JumpTimeout;
            _fallTimeoutDelta = FallTimeout;
        }

        private void Update()
        {
            _hasAnimator = TryGetComponent(out _animator);

            JumpAndGravity();
            GroundedCheck();
            Move();
        }

        private void LateUpdate()
        {
            CameraRotation();
            CameraZoom();
        }


        public CinemachinVirtualCamera cinemachineVirtualCamera;

        public float zoomMinDistance = 0f;

        public float zoomMaxDistance = 10f;

        public float zoomSpeed = 0.02F;

        public float zoomFactor = 0.5f;

        private float zoom = 4f;

        private float cameraDistance = 4f;

        private float zoomVelocity = 0f;



        private void CameraZoom()
        {
            this.zoom -= _input.zoom / 240f * this.zoomFactor;
            this.zoom = Mathf.Clamp(this.zoom, this.zoomMinDistance, this.zoomMaxDistance);
            this.cameraDistance = Mathf.SmoothDamp(this.cameraDistance, this.zoom, ref this.zoomVelocity, Time.unscaledTime * this.zoomSpeed);

            this.cinemachineVirtualCamera.GetComponent<Cinemachine3rdPersonFollow>().CameraDistance = this.cameraDistance;
        }

        private void AssignAnimationIDs()
        {
            _animIDSpeed = Animator.StringToHash("Speed");
            _animIDGrounded = Animator.StringToHash("Grounded");
            _animIDJump = Animator.StringToHash("Jump");
            _animIDFreeFall = Animator.StringToHash("FreeFall");
            _animIDMotionSpeed = Animator.StringToHash("MotionSpeed");
        }

        private void GroundedCheck()
        {
            // set sphere position, with offset
            Vector3 spherePosition = new Vector3(transform.position.x, transform.position.y - GroundedOffset,
                transform.position.z);
            Grounded = Physics.CheckSphere(spherePosition, GroundedRadius, GroundLayers,
                QueryTriggerInteraction.Ignore);

            // update animator if using character
            if (_hasAnimator)
            {
                _animator.SetBool(_animIDGrounded, Grounded);
            }
        }

        private void CameraRotation()
        {
            // if there is an input and camera position is not fixed
            if (_input.look.sqrMagnitude >= _threshold && !LockCameraPosition)
            {
                //Don't multiply mouse input by Time.deltaTime;
                float deltaTimeMultiplier = IsCurrentDeviceMouse ? 1.0f : Time.deltaTime;

                _cinemachineTargetYaw += _input.look.x * deltaTimeMultiplier;
                _cinemachineTargetPitch += _input.look.y * deltaTimeMultiplier;
            }

            // clamp our rotations so our values are limited 360 degrees
            _cinemachineTargetYaw = ClampAngle(_cinemachineTargetYaw, float.MinValue, float.MaxValue);
            _cinemachineTargetPitch = ClampAngle(_cinemachineTargetPitch, BottomClamp, TopClamp);

            // Cinemachine will follow this target
            CinemachineCameraTarget.transform.rotation = Quaternion.Euler(_cinemachineTargetPitch + CameraAngleOverride,
                _cinemachineTargetYaw, 0.0f);
        }

        private void Move()
        {
            // set target speed based on move speed, sprint speed and if sprint is pressed
            float targetSpeed = _input.sprint ? SprintSpeed : MoveSpeed;

            // a simplistic acceleration and deceleration designed to be easy to remove, replace, or iterate upon

            // note: Vector2's == operator uses approximation so is not floating point error prone, and is cheaper than magnitude
            // if there is no input, set the target speed to 0
            if (_input.move == Vector2.zero) targetSpeed = 0.0f;

            // a reference to the players current horizontal velocity
            float currentHorizontalSpeed = new Vector3(_controller.velocity.x, 0.0f, _controller.velocity.z).magnitude;

            float speedOffset = 0.1f;
            float inputMagnitude = _input.analogMovement ? _input.move.magnitude : 1f;

            // accelerate or decelerate to target speed
            if (currentHorizontalSpeed < targetSpeed - speedOffset ||
                currentHorizontalSpeed > targetSpeed + speedOffset)
            {
                // creates curved result rather than a linear one giving a more organic speed change
                // note T in Lerp is clamped, so we don't need to clamp our speed
                _speed = Mathf.Lerp(currentHorizontalSpeed, targetSpeed * inputMagnitude,
                    Time.deltaTime * SpeedChangeRate);

                // round speed to 3 decimal places
                _speed = Mathf.Round(_speed * 1000f) / 1000f;
            }
            else
            {
                _speed = targetSpeed;
            }

            _animationBlend = Mathf.Lerp(_animationBlend, targetSpeed, Time.deltaTime * SpeedChangeRate);
            if (_animationBlend < 0.01f) _animationBlend = 0f;

            // normalise input direction
            Vector3 inputDirection = new Vector3(_input.move.x, 0.0f, _input.move.y).normalized;

            // note: Vector2's != operator uses approximation so is not floating point error prone, and is cheaper than magnitude
            // if there is a move input rotate player when the player is moving
            if (_input.move != Vector2.zero)
            {
                _targetRotation = Mathf.Atan2(inputDirection.x, inputDirection.z) * Mathf.Rad2Deg +
                                  _mainCamera.transform.eulerAngles.y;
                float rotation = Mathf.SmoothDampAngle(transform.eulerAngles.y, _targetRotation, ref _rotationVelocity,
                    RotationSmoothTime);

                // rotate to face input direction relative to camera position
                transform.rotation = Quaternion.Euler(0.0f, rotation, 0.0f);
            }


            Vector3 targetDirection = Quaternion.Euler(0.0f, _targetRotation, 0.0f) * Vector3.forward;

            // move the player
            _controller.Move(targetDirection.normalized * (_speed * Time.deltaTime) +
                             new Vector3(0.0f, _verticalVelocity, 0.0f) * Time.deltaTime);

            // update animator if using character
            if (_hasAnimator)
            {
                _animator.SetFloat(_animIDSpeed, _animationBlend);
                _animator.SetFloat(_animIDMotionSpeed, inputMagnitude);
            }
        }

        private void JumpAndGravity()
        {
            if (Grounded)
            {
                // reset the fall timeout timer
                _fallTimeoutDelta = FallTimeout;

                // update animator if using character
                if (_hasAnimator)
                {
                    _animator.SetBool(_animIDJump, false);
                    _animator.SetBool(_animIDFreeFall, false);
                }

                // stop our velocity dropping infinitely when grounded
                if (_verticalVelocity < 0.0f)
                {
                    _verticalVelocity = -2f;
                }

                // Jump
                if (_input.jump && _jumpTimeoutDelta <= 0.0f)
                {
                    // the square root of H * -2 * G = how much velocity needed to reach desired height
                    _verticalVelocity = Mathf.Sqrt(JumpHeight * -2f * Gravity);

                    // update animator if using character
                    if (_hasAnimator)
                    {
                        _animator.SetBool(_animIDJump, true);
                    }
                }

                // jump timeout
                if (_jumpTimeoutDelta >= 0.0f)
                {
                    _jumpTimeoutDelta -= Time.deltaTime;
                }
            }
            else
            {
                // reset the jump timeout timer
                _jumpTimeoutDelta = JumpTimeout;

                // fall timeout
                if (_fallTimeoutDelta >= 0.0f)
                {
                    _fallTimeoutDelta -= Time.deltaTime;
                }
                else
                {
                    // update animator if using character
                    if (_hasAnimator)
                    {
                        _animator.SetBool(_animIDFreeFall, true);
                    }
                }

                // if we are not grounded, do not jump
                _input.jump = false;
            }

            // apply gravity over time if under terminal (multiply by delta time twice to linearly speed up over time)
            if (_verticalVelocity < _terminalVelocity)
            {
                _verticalVelocity += Gravity * Time.deltaTime;
            }
        }

        private static float ClampAngle(float lfAngle, float lfMin, float lfMax)
        {
            if (lfAngle < -360f) lfAngle += 360f;
            if (lfAngle > 360f) lfAngle -= 360f;
            return Mathf.Clamp(lfAngle, lfMin, lfMax);
        }

        private void OnDrawGizmosSelected()
        {
            Color transparentGreen = new Color(0.0f, 1.0f, 0.0f, 0.35f);
            Color transparentRed = new Color(1.0f, 0.0f, 0.0f, 0.35f);

            if (Grounded) Gizmos.color = transparentGreen;
            else Gizmos.color = transparentRed;

            // when selected, draw a gizmo in the position of, and matching radius of, the grounded collider
            Gizmos.DrawSphere(
                new Vector3(transform.position.x, transform.position.y - GroundedOffset, transform.position.z),
                GroundedRadius);
        }

        private void OnFootstep(AnimationEvent animationEvent)
        {
            if (animationEvent.animatorClipInfo.weight > 0.5f)
            {
                if (FootstepAudioClips.Length > 0)
                {
                    var index = Random.Range(0, FootstepAudioClips.Length);
                    AudioSource.PlayClipAtPoint(FootstepAudioClips[index], transform.TransformPoint(_controller.center), FootstepAudioVolume);
                }
            }
        }

        private void OnLand(AnimationEvent animationEvent)
        {
            if (animationEvent.animatorClipInfo.weight > 0.5f)
            {
                AudioSource.PlayClipAtPoint(LandingAudioClip, transform.TransformPoint(_controller.center), FootstepAudioVolume);
            }
        }
    }
}

The error message is asking you if you are missing a “using” directive. In your code, I don’t see using Cinemachine; anywhere. Try adding it at the top.

On another note, let me ask you: since you are starting a new project on 2022.3, why don’t you install Cinemachine 3.1.1? It includes mouse wheel zooming out of the box.

In fact, it also comes with a sample character controller that is (IMO) superior to the one in starter assets. Consider ditching starter assets and using CM3’s character controller instead.

Can you describe the character controller and camera behaviour that you want to implement? I can steer you in the right direction with CM3.