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Re: NSUserDefaultsController valueForUndefinedKey:
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Re: NSUserDefaultsController valueForUndefinedKey:


  • Subject: Re: NSUserDefaultsController valueForUndefinedKey:
  • From: Quincey Morris <email@hidden>
  • Date: Sat, 20 Mar 2010 10:36:03 -0700

On Mar 19, 2010, at 21:04, Richard Somers wrote:

> When moving a slider in a preference panel I sometimes get an error.
>
> 2010-03-19 01:46:49.860 MyApp[4249:10b] Error setting value for key path values.ABRadius of object <NSUserDefaultsController: 0x169c00>[applies immediately: YES] (from bound object <NSSlider: 0x6707de0> with object ID 59 in Nib named ABPreferencePanel.nib): [<NSCFType 0x168ec0> valueForUndefinedKey:]: this class is not key value coding-compliant for the key radius.
>
> 2010-03-19 16:55:16.415 MyApp[5710:10b] Error setting value for key path values.ABRadius of object <NSUserDefaultsController: 0x1696e0>[applies immediately: YES] (from bound object <NSSlider: 0x622f790> with object ID 59 in Nib named ABPreferencePanel.nib): [<NSKeyValueSlowSetter 0x168970> valueForUndefinedKey:]: this class is not key value coding-compliant for the key radius.

Note:

	"sometimes get an error"

	[<NSCFType 0x168ec0> valueForUndefinedKey:]

	[<NSKeyValueSlowSetter 0x168970> valueForUndefinedKey:]

So you're getting an exception (thrown in valueForUndefinedKey:) from objects of various strange classes, and it only happens some of the time.

This pattern is very characteristic of a memory management bug in your application. That's what I'd start looking for.


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References: 
 >NSUserDefaultsController valueForUndefinedKey: (From: Richard Somers <email@hidden>)

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