Validation problem -- missing package?

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Validation problem -- missing package?

Peter Kwangjun Suk
I'm getting a funny validation error in Magritte.

Is the "Scaffolding" package necessary to restore extensions like
#isKindOf: in the Memento classes?


MADescription>>validateKind:
validateKind: anObject
        "Validate ==anObject== to be of the right kind."

        (anObject isKindOf: self kind)
                ifFalse: [ MAKindError description: self signal: self kindErrorMessage ]


--
There's neither heaven not hell,
save what we grant ourselves.
There's neither fairness nor justice,
save what we grant each other.
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