[Zope] Plone 1.0.2 - Cannot add site

[Ng Pheng Siong]

Hi,

I installed Plone 1.0.2 and corrected the installation per the errata on a
mostly pristine Zope 2.6.1 setup.

I tried to "Add Plone Site": filled in the form and hit the "Add Plone
Site" button. I got this:

  Zope has encountered an error while publishing this resource.
  
  Error Type: AttributeError
  Error Value: get
  
  Troubleshooting Suggestions
  
      * The URL may be incorrect.
      * The parameters passed to this resource may be incorrect.
      * A resource that this resource relies on may be encountering an error.
  
  For more detailed information about the error, please refer to the HTML
  source for this page.
  
  If the error persists please contact the site maintainer. Thank you for
  your patience.


Clues appreciated. Cheers.

-- 
Ng Pheng Siong <ngps@netmemetic.com>