On 03/06/2011 15:25, Martijn Pieters wrote:
> On Fri, Jun 3, 2011 at 12:42, Peter Bengtsson<m...@peterbe.com>  wrote:
>> I'm getting the error below when trying to boot up a zope 2.13.7 using
>> a Data.fs I took from a zope 2.8.12 instance.
> You may want to try to boot up the instance on intermediary Zope
> versions first, it may well update the pickles for you along the way.

Not quite.

I hit this problem going from Zope 2.9 to 2.12.

The answer was to load up on 2.9, save all the affected objects 
(_p_changed = 1 or some such) and then try moving to 2.12 again...



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