How to detect where NaN is passing to CoreGraphics API on Mac OS X 10.9

Question

I have very large graphic Mac app and now I receive a lot of the following messages in Console on 10.9 GM.

: Error: this application, or a library i         


        

Answer 1

I was getting this error when I was foolishly retaining an NSPopover for future use.

It seems popover.showRelativeToRect(_:) is all you need to do, and then you can forget about it.