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Re: new crash in Xcode 4

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Re: new crash in Xcode 4

Subject: Re: new crash in Xcode 4
From: David Duncan <email@hidden>
Date: Wed, 13 Jul 2011 14:12:42 -0700

On Jul 13, 2011, at 2:06 PM, David Rowland wrote:

The report is,

2011-07-13 13:51:55.884 G[3347:207] *** +[UIView animateWithDuration:delay:options:animations:completion:]: unrecognized selector sent to class 0x21c189c

And it appears to be the completion routine that is doing it. infoButton is retained and should be in existence at this point. The source code has not changed since Xcode 3.

Anyone recognize this problem?

This type of crash shouldn't have anything to do with the version of Xcode you are compiling with, but (in this case) the version of iOS you are running against. Since this method is new in iOS 4.0 if you are running on anything earlier, it will crash. If you are running against iOS 4.0+, then it is likely that you have a memory smasher in your application and the reason why it is crashing now is because the rebuild caused the smasher to target a different part of memory, and now it is obliterating something in UIView. In the debugger console do "po <address>" (0x21c189c above) to find out what the message was actually sent to – you should see UIView.

--

David Duncan

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	>new crash in Xcode 4 (From: David Rowland <email@hidden>)

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