How to track down error "unrecognized selector sent to instance"

Question

I am getting the following error:

-[__NSCFBoolean isEqualToString:]: unrecognized selector sent to instance 0x56bb95c

Is it possible to track down what's the variable responsible of this error? The stack call is not helping me in this scenario.

possible duplicate of [How to resolve 'unrecognized selector sent to instance'?](http://stackoverflow.com/questions/861626/how-to-resolve-unrecognized-selector-sent-to-instance) — DrummerB, Mar 29 '13 at 14:30

score 3 · Accepted Answer · answered Mar 29 '13 at 14:28

3

You have a BOOL type while you are considering it as NSString and trying to compare with some other string by isEqualToString:

 [__NSCFBoolean isEqualToString:]
  ....^^^^^^^^^

answered Mar 29 '13 at 14:28

Anoop Vaidya

This is what i thought but how can i spot in my code wich variable trigger this error? – tiguero Mar 29 '13 at 14:37
If you are not sure, you called explicitly isEqualToString or you have a BOOL. Then you can use BreakPoint from init/viewDidLoad and go on to check each one. step over/step into etc – Anoop Vaidya Mar 29 '13 at 14:39

1 Answers1