[Erp5-users] "AttributeError: portal_types" while adding ERP5 site

[Chetan Kumar]

Hi all
Following message is seen on adding a new ERP5 site.

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2011-04-02T16:19:03 ERROR Zope.SiteErrorLog 1301732343.070.705080412817 
http://localhost:18080/manage_addProduct/ERP5/manage_addERP5Site
Traceback (innermost last):
   Module ZPublisher.Publish, line 127, in publish
   Module ZPublisher.mapply, line 77, in mapply
   Module ZPublisher.Publish, line 47, in call_object
   Module Products.ERP5.ERP5Site, line 97, in manage_addERP5Site
   Module Products.ERP5.ERP5Site, line 1614, in create
   Module Products.ERP5.ERP5Site, line 2025, in setup
   Module Products.ERP5.ERP5Site, line 2042, in setupERP5Core
   Module Products.ERP5.Tool.TemplateTool, line 125, in 
getInstalledBusinessTemplate
   Module Products.ERP5Type.Core.Folder, line 1471, in contentValues
   Module Products.ERP5Type.Base, line 798, in _getTypesTool
AttributeError: portal_types

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Any help will be appreciated.
Cheers
Chetan