New Post: How do you validate a list of ints using fluent validation?

My model has:

 public List<int> WindowGlassItems { get; set; }

Model Validator has

RuleFor(x => x.WindowGlassItems).SetCollectionValidator(new WindowGlassItemsValidator());

  public class WindowGlassItemsValidator : AbstractValidator<int>
    {
        public WindowGlassItemsValidator()
        {
            RuleFor(x=>x).NotNull().NotEqual(0).WithMessage("GLASS REQ");
        }
    }

Im getting:

Property name could not be automatically determined for expression x => x. Please specify either a custom property name by calling 'WithName'.