I am trying to resolve a \"message sent to deallocated instance \" error in iOS.
Use instruments, you'll get the exact line -
(In XCode) Run it through "Product" -> "Profile".
This will start Instruments, there you should choose "Zombies" and reproduce the bug event.
You'l get a pop-up once a zombie is called, press the chevron to see the exact line.
Problem is usually a bad __bridge (optional bridges __brige_retained / __bridge_transfer / __bridge)