“Plain Style unsupported in a Navigation Item” warning with my customized Bar Button Item

Question

I drag a Round Rect Button to the position of the right Bar Button Item, and set an image to the Round Rect Button. All works well, except the warning \"Plain Style unsuppor

Answer 1

If you are using storyboard then click the warning and it should take you to the offending navigation item (I had two for the problem, one took me there the other did not) - change the style and clean the project.