Plone: ValueError: undefined property 'default_view'
Recently I have spent too much time trying to solve the error "ValueError: undefined property 'default_view'" while moving an old archetype product from Plone 2.1 site to an ATContentType product using dynamic views for Plone 4.
I had taken time to reproduce the design of ATContentTypes content replicating what had been done in event.py and newsitems.py products but still have this error each time I was trying to install my new content type, named ShopProduct.
Looking at ShopProduct.xml in profiles/defaukt/types everything was OK compared to Event.xml, I had properly declared my meta_type as "Factory-based Type Information with dynamic views", but this error was always coming back each time I was pushing the "Install" button in portal_quickinstaller.
Finally, I realized that in profiles/default/types.xml my content type was always declared using meta_type="Factory-based Type Information"
So, I've moved it from:
<object name="ShopProduct" meta_type="Factory-based Type Information"/>
<object name="ShopProduct" meta_type="Factory-based Type Information with dynamic views"/>
And it was ok.
My Goodness, was a stupid an disturbing error...
Hope it will prevent you from spending so much time on the same issue.