[Seaside] Error trying to install Nori (template system)

[Germán S. Arduino]

Hi:

I want to try Nori, in a 3.7 image with newest version of Comanche and using
Seaside 2.5, but can't to install, with the error:

This package depends on the following classes:
  SAXHandler
You must resolve these dependencies before you will be able to load these
definitions:
  ZZTemplateParser
  ZZTemplateParser class>>parseStream:
  ZZTemplateParser>>characters:
  ZZTemplateParser>>comment:
  ZZTemplateParser>>endElement:
  ZZTemplateParser>>ignorableWhitespace:
  ZZTemplateParser>>initialize
  ZZTemplateParser>>parse
  ZZTemplateParser>>popBody
  ZZTemplateParser>>popTag
  ZZTemplateParser>>pushBody
  ZZTemplateParser>>pushTag:
  ZZTemplateParser>>startElement:attributeList:


Select Proceed to continue, or close this window to cancel the operation.

Where is the SAXHandler class? Is another prerequesite package?

TIA.

gsa.