'setObject:forKey only defined for abstract class' runtime error

FROM : Bert Torfs
DATE : Thu Oct 14 20:34:33 2004

Hi all,

I guess this is fairly basic, but it is killing me (so to speak).
I have a class that inherits from NSMutableDictionary. Whenever I call
[setObject:ForKey] on it (or [enumerator]) I get the message
'setObject:forKey only defined for abstract class. Define [CPlotSerie
setObject;forKey:]'
All I want i s to call the ancestors' implementation. Any ideas?

Thanks a lot,

Bert