RaiseMan Exception
RaiseMan Exception
- Subject: RaiseMan Exception
- From: Todd Heberlein <email@hidden>
- Date: Thu, 29 Dec 2011 12:52:47 -0800
I'm getting an exception thrown that I am trying to figure out.
I'm working through "Cocoa Programming for Mac OS X" fourth edition, and added the first undo code in chapter 151 -- the Undo code for adding and removing Person objects. Testing seems to work fine, except when I do repeated Undo and Redo menu commands very rapidly. At some point when I click on the "Edit" menu the program crashes.
For example, I click on "Add Employee" twice, and then repeated go to
Edit --> Undo Add Person
Edit --> Redo Add Person
Crash
The exception is from the default template code:
- (NSData *)dataOfType:(NSString *)typeName error:(NSError **)outError
The frames stack is:
0 __pthread_kill
9 _objc_exception_destructor
10 -[RMDocument dataOfType:error:] <-- exception thrown here
11 -[NSDocument writeToURL:ofType:error:]
39 NSApplicationMain
40 main
Any ideas why I'm getting the exception?
Any idea why [NSDocument writeToURL:ofType:error:] is being called?
Thanks,
Todd
PS. Using
Xcode 4.2 (Build 4D199)
Mac OS 10.7.2
Mac Book Air (MacBookAir3,2)
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