ios - How to know the object name based on memory address in objective c -

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hi 1 of app crashing repeatedly , giving below error. 

 *** -[cfstring release]: message sent deallocated instance 0x1b7a3b70

is there way object name using memory address. used instruments (zombie) , enabled zombies in xcode no luck. can please me in issue stuck please me.

it's string. cfstring bridged nsstring. knowledge, use debugger , breakpoints. break points can step through code, , use quicklook see details objects.


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