Interface Builder crashes on every other change to a XIB.
Interface Builder crashes on every other change to a XIB.
- Subject: Interface Builder crashes on every other change to a XIB.
- From: G S <email@hidden>
- Date: Wed, 21 Sep 2011 17:38:41 -0700
Hi all.
This is a pretty major problem: Interface Builder crashes after every
two changes to a XIB. For example, I have a view with an empty
toolbar on it. Drag a UITableView onto the view... CRASH. Let Xcode
relaunch after the crash, and the UITableView is in place. Resize the
UITableView, fine. Drag a plain UIView onto the base view... CRASH.
Repeat forever.
Here's the top of the crash log:
ASSERTION FAILURE in
/SourceCache/IDEInterfaceBuilder/IDEInterfaceBuilder-1910/Framework/ClassDescriptions/ClassProviders/UnsavedFilesClassProvider/IBUnsavedFilesClassProvider.m:148
Details: Already have registered an observer on
<IBCocoaTouchDocument: 0x402b17460>
Object: <IBUnsavedFilesClassProvider: 0x401a59da0>
Method: -startListeningToDidChangeForEditorDocument:
Thread: <NSThread: 0x40010a260>{name = (null), num = 1}
Hints: None
Backtrace:
0 0x000000010547d066 -[IDEAssertionHandler
handleFailureInMethod:object:fileName:lineNumber:messageFormat:arguments:]
(in IDEKit)
1 0x0000000104b530f4 _DVTAssertionFailureHandler (in DVTFoundation)
2 0x0000000107f8983e -[IBUnsavedFilesClassProvider
startListeningToDidChangeForEditorDocument:] (in
IDEInterfaceBuilderKit)
3 0x00007fff958229a2 -[__NSObserver _doit:] (in Foundation)
4 0x00007fff95822875 __-[NSNotificationCenter
addObserverForName:object:queue:usingBlock:]_block_invoke_1 (in
Foundation)
This strikes me as a pretty big defect. Anybody seeing this?
Thanks!
Gavin
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