Problem with Archetypes

I have been working on a simple product for classified ads and I've come 
up against a problem in which -- it appears -- that one of the fields in 
my Archetypes schema isn't working. However I can't tell if that's 
precisely the problem.

Here's a listing of the last few lines of the traceback I"m getting.

  - __traceback_info__: here.getBody()
  Module Python expression "here.getBody()", line 1, in <expression>
  Module Products.Archetypes.ClassGen, line 56, in generatedAccessor
  Module Products.Archetypes.Field, line 1029, in get
  Module Products.Archetypes.BaseUnit, line 89, in transform
  Module Products.CMFCore.utils, line 75, in getToolByName
 AttributeError: portal_transforms


Any suggestions?

Dhruva


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