Place a breakpoint on objc_exception_throw and eliminate the guesswork.

Cheers,
Joshua

On Sep 5, 2009, at 9:55 AM, "Rick C." <[email protected]> wrote:

hello,

i'm just looking for a confirmation here.  if i'm getting this crash:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSCFString appendString:]: nil argument'

is it definitely crashing on my NSMutableString appendString: method or is it possible it's also crashing on NSString stringByAppendingString:? as far as i know either one will throw an exception that's why i'm asking.

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