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Diagnosing NSString error in Leopard

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Diagnosing NSString error in Leopard

Subject: Diagnosing NSString error in Leopard
From: John Stiles <email@hidden>
Date: Wed, 05 Dec 2007 13:17:52 -0800

I noticed that my app was printing the following warning to the Xcode debugger console:

       *** -[NSCFString replaceCharactersInRange:withString:]: nil argument

I found reproducible steps for the problem, but I'm not sure where in the code this is happening. So I set a breakpoint on NSLog, thinking that I could catch it in the act. This didn't give me much assistance, unfortunately:

#0    0x953d9fd6 in NSLog
#1    0x9127ecc8 in _NSDefaultTopLevelErrorHandler
#2    0x910755ca in -[NSApplication run]
#3    0x00d9d580 in /my application/

Apparently the logging has been deferred for some reason. What would be a good way to get the debugger to stop when this error actually occurs? _______________________________________________

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