How to fix “'@IBInspectable' attribute is meaningless on a property that cannot be represented in Objective-C” warning

Question

In Xcode 9 and Swift 4 I always get this warning for some IBInspectable properties:

    @IBDesignable public class CircularIndicator: UIView {
          


        

Answer 1

Below two points might helps you

1. As there is no concept of optional in objective c, So optional IBInspectable produces this error. I removed the optional and provided a default value.

2. If you are using some enumerations types, then write @objc before that enum to remove this error.