iphone - Push/Pop View Controller EXC_BAD_ACCESS -

anyone know why if push/pop localsearchviewcontroller, exc_bad_access error after 5 push/pops

if (localsearchviewcontroller == nil)     localsearchviewcontroller = [[localsearchviewcontroller alloc] init];      cbaappappdelegate *app = (cbaappappdelegate *) [[uiapplication sharedapplication] delegate];      [app.navbarcontroller.navigationbar sethidden:yes];      [app.navbarcontroller pushviewcontroller: localsearchviewcontroller                                     animated:yes]; 

i don't know if cause if crash unless have overwritten view controller's init method, should using designated initialiser instead:

- (id)initwithnibname:(nsstring *)nibname bundle:(nsbundle *)nibbundle

and if have method defined in implementation file, make sure calling super on too.

if doesn't solve problem, can try , find code crashing setting breakpoints through method , within localsearchviewcontroller well. on release problem somewhere in code.

[edit add]

here's code initialising view controller should like:

localsearchviewcontroller = [[localsearchviewcontroller alloc] initwithnibname:@"yournibname" bundle:nil];