xcode - How to track the exact issue for the crash in iOS -

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when debugging iphone app, got error , app got crashed. have added exception break point didn't point in code , crashed in main.m.

here adding screen shot of xcode window when app crashed.

enter image description here how can find exact issue crash this?

is possible? please help.

enable zoombie error description in log.

if edit scheme want turn on zombies (in "product" menu, select "edit scheme"), go "run foo.app" stage in left panel, , "arguments" tab on right. can add nszombieenabled "environment variables" section , set value yes, in xcode 3.

in xcode 4.1 , above, there's checkbox on "diagnostics" tab of "run" stage "enable zombie objects".


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