On Apr 26, 2010, at 5:23 PM, Jack Repenning wrote:

> One of my testers (and, naturally, none of the test systems I can get my 
> hands on) reports this Console error when performing a certain operation:
> 
> -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class 
> (NSDictionaryController)
[...]
> But, does this mean "I found your NSDictionaryController, but something's 
> wrong with it and I can't decode it"? That is, something busted inside my 
> NSDC?

No.

> Or, does it mean "I know I'm supposed to be looking for an NSDC, but dang if 
> I can find the bugger"? That is, is there a platform version consideration 
> here?  The tester with the troubles runs Tiger; I build on Snow Leopard using 
> SDK 10.4u and deployment target 10.4. I haven't heard from any other Tiger 
> testers, troubled or not, so perhaps this is an SL->Tiger versionitis issue? 
> But not-so-very-long-ago builds, from this same configuration, work for this 
> tester, so that seems ruled out. Is Tiger simply not expected to grok Snow 
> Leopard NSDCs?

It's not expected to grok NSDCs at all. The class documentation states that the 
class was added in Leopard.

Nick Zitzmann
<http://www.chronosnet.com/>

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