The implementation of old-style NSNumberFormatter has some sort of 
compatibility code for old archive formats. It's possible that new versions of 
Xcode don't write that old format correctly, or even try to do it at all.

(The error occurs because the Zero field came back as an NSString instead of an 
NSAttributedString, and the code wasn't expecting that.)

Can you switch to the new-style NSNumberFormatter now? The new-style 
NSNumberFormatter's zeroSymbol didn't work in 10.4 itself but should work in 
later OS versions.


On May 7, 2014, at 2:51 PM, Gary L. Wade <garyw...@desisoftsystems.com> wrote:

> There are occasional bugs when converting from earlier formats. What I do 
> besides reporting the bug is to look at the underlying XML in the earlier 
> version of the XIB and the later version and try to manually make the 
> necessary changes using a text editor. I've sometimes had to quit Xcode, edit 
> the XIB, lock the XIB so Xcode won't change it, and then relaunch Xcode. You 
> may not have to go that far, but I wouldn't doubt that support for pre-10.4 
> number formatters to be lost in test for later-XIB formats.
> --
> Gary L. Wade (Sent from my iPhone)
> http://www.garywade.com/
> 
>> On May 7, 2014, at 2:37 PM, Howard Moon <how...@antarestech.com> wrote:
>> 
>> Ok, this seems to be an IB issue.  I've made my own NSNumberFormatter, set 
>> its properties, and set it as the formatter for my text fields, all in code, 
>> and that works perfectly.  No idea why the same object created in Xcode 
>> fails, but I'll do whatever it takes to make it work, I guess!
>> 
>> Regards,
>>   Howard
>> 
>> 
>>> On May 7, 2014, at 1:47 PM, Howard Moon <how...@antarestech.com> wrote:
>>> 
>>> Hm, it may be that something else is at play here.  I did make ONE change 
>>> when porting… I put my text fields inside a tab view.  I wonder if maybe 
>>> there's a problem accessing the number formatter from a control inside a 
>>> tab view?  All the connections *appear* to be there, and the call stack 
>>> does show that it's accessing an NSNumberFormatter (and there's only on in 
>>> my project).  Need to run a test...
>>> 
>>> Ok… I just tested the same code using the OLD xib, WITHOUT the tab view, 
>>> and it works with no problems!
>>> 
>>> So… does anyone know if simply adding a (two-tab) tab view and dragging 
>>> existing objects on its pages causes any problems like this? Is there a 
>>> connection I've overlooked that I need to make once the objects are inside 
>>> that tab view?
>>> 
>>> Thanks,
>>>   -Howard
>>> 
>>>> On May 7, 2014, at 9:34 AM, Howard Moon <how...@antarestech.com> wrote:
>>>> 
>>>> Hi,
>>>> 
>>>>   is the 10.0+ style of NSNumberFormatter no longer supported?  I recently 
>>>> moved from developing in Xcode3 under OS X 10.7 to Xcode 4 under OS X 
>>>> 10.8, and from having a Base SDK of 10.6 to 10.7, and from a Deployment 
>>>> Target of 10.5 to 10.6, and am now having problems with my xib-base 
>>>> NSTextFields connected to an NSNumberFormatter.  The formatter uses the 
>>>> 10.0+ style, allowing me to set the "Zero" field, which I am setting to 
>>>> the string N/A.  This worked fine, even when running in 10.8 or 10.9, but 
>>>> crashes now that I've compiled under these new conditions.
>>>> 
>>>> Here is the call stack when the exception is thrown:
>>>> 
>>>> 2014-05-07 08:32:15.225 Cubase 7.5[947:707] -[__NSCFString string]: 
>>>> unrecognized selector sent to instance 0x1050188d0
>>>> 2014-05-07 08:32:15.226 Cubase 7.5[947:707] NSInvalidArgumentException - 
>>>> -[__NSCFString string]: unrecognized selector sent to instance 0x1050188d0
>>>> 0   CoreFoundation                      0x00007fff92b32aee 
>>>> __exceptionPreprocess + 174
>>>> 1   libobjc.A.dylib                     0x00007fff8b8b13f0 
>>>> objc_exception_throw + 43
>>>> 2   CoreFoundation                      0x00007fff92bc940a 
>>>> -[NSObject(NSObject) doesNotRecognizeSelector:] + 186
>>>> 3   CoreFoundation                      0x00007fff92b2102e 
>>>> ___forwarding___ + 414
>>>> 4   CoreFoundation                      0x00007fff92b20e18 
>>>> _CF_forwarding_prep_0 + 232
>>>> 5   Foundation                          0x00007fff93bc592b 
>>>> -[NSNumberFormatter(NSNumberFormatterCompatibility2) 
>>>> __oldnf_stringForObjectValue:] + 192
>>>> 6   AppKit                              0x00007fff8bd2ba93 -[NSCell 
>>>> _stringForEditing] + 83
>>>> 7   AppKit                              0x00007fff8bd35a32 -[NSCell 
>>>> _skipsSynchronizationForEditingTextView:] + 34
>>>> 8   AppKit                              0x00007fff8bc5e43f -[NSCell 
>>>> setObjectValue:] + 296
>>>> 9   AppKit                              0x00007fff8bc5e2fd 
>>>> -[NSTextFieldCell setObjectValue:] + 43
>>>> 10  AppKit                              0x00007fff8be51cbd -[NSCell 
>>>> _setIntegerValue:] + 196
>>>> 11  AppKit                              0x00007fff8be47f49 -[NSControl 
>>>> setIntValue:] + 138
>>>> ...
>>>> 
>>>> I am simply calling setIntValue with a value of 0, which in previous 
>>>> builds would set the text field's text to "N/A".  But now this exception 
>>>> is thrown, and I don't know why or what to do about it.  If the 10.0 style 
>>>> of NSNumberFormatter is no longer supported, why is it still available in 
>>>> Xcode 4, and why does it compile and run, up to the point I set its value 
>>>> to 0?
>>>> 
>>>> Thanks,
>>>>   -Howard
>>>> 
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>>> 
>>> 
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