How do I fix this?
Assets/Scripts/ThirdPersonCamera.cs(24,7): error CS0246: The type or namespace name `UnityEditor' could not be found. Are you missing a using directive or an assembly reference?
and
Assets/Scripts/ThirdPersonCameraEditor.cs(3,7): error CS0246: The type or namespace name `UnityEditor' could not be found. Are you missing a using directive or an assembly reference?
Error building Player because scripts had compiler errors