iphone - Why does animating a modal view controller onscreen cause a crash here? -

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this piece of code works fine. however, if change animated parameter yes crashes.

accountviewcontroller *accviewcontroller = [[accountviewcontroller alloc] initwithnibname:@"account" bundle:nil];  [self.navigationcontroller pushviewcontroller:accviewcontroller animated:no]; [accviewcontroller release];

what wrong?

are doing while other animation going on? i've seen crashes here in type of situation (for example, while 1 view being dismissed, pushing or presenting crash.)


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