How to find memory leaks in iphone

We are getting some memory leaks at point:

[UI开发者_高级运维View respondsToSelector:]: message sent to deallocated instance

but I cannot understand where I am missing an also I don't understand what it means that [UIView respondsToSelector:]: message sent to deallocated instance).

build your app with mac+shift+a and it will show memory leaks.. and for more accurately find memory leaks use Instruments

http://developer.apple.com/library/mac/#documentation/DeveloperTools/Conceptual/InstrumentsUserGuide/WorkingWithInstruments/WorkingWithInstruments.html

Enable NSZOMBIE to start with then use the allocation tools in instruments.

Use XCode 4's analyze feature for basic leaks - it's very good.