'NSInvalidArgumentException', reason: '-[UISearchBar searchTextField]: unrecognized selector sent to instance

Question

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UISearchBar searchTextField]: unrecognized selector sent to instance 0x7f8ebaf60cf0'

How do I know which is this view 0x7f8ebaf60cf0?

I was doing PO 0x7f8ebaf60cf0

and it returns this 140250998770928

Then I needed more info like recursiveDescription but I can't get further. How can I start debugging such a bug?

Answer 1

The problem is that searchTextField is iOS 13 only. On iOS 12 and before it compiles, runs, and crashes. Just do a global search for searchTextField and don’t use it under iOS 12 or earlier.