On Fri, 18 Feb 2005 09:08:49 -0300, German Arduino <gsa at softhome.net>  
wrote:

>
> * SIXX: Don't install, I get
> "UndefinedObject(Object)>>doesNotUnderstand: #methodsFor:stamp:"
>
You are missing a class. Load my 'Unloadable' package from SqueakMap. Do  
'Unloadable _ IdentityDictionary new' first, I missed that one. Load SIXX  
again, now Unloadable will have entries for missing classes.

Really, in all modesty, Unloadable is indispensable for this sort of work  
;).