Crash [SIAlertView transitionInCompletion:]_block_invoke

[liufsd]

 libobjc.A.dylib    

objc_msgSend + 5 indexOfObject: 1 Eudic
SIAlertView.m line 357 19-[SIAlertView show]_block_invoke 2 Eudic
SIAlertView.m line 456 38-[SIAlertView transitionInCompletion:]_block_invoke248 3 UIKit
-[UIViewAnimationBlockDelegate _didEndBlockAnimation:finished:context:] + 284 4 UIKit
-[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 178 5 UIKit
-[UIViewAnimationState animationDidStop:finished:] + 66 6 QuartzCore
CA::Layer::run_animation_callbacks(void*) + 234

Code :

• (void)transitionInCompletion:(void(^)(void))completion ...... if (completion) { (line 456 ) completion(); } .....
• (void)show ....... (line 357) NSInteger index = [[SIAlertView sharedQueue] indexOfObject:self]; .....