Comment 51 for bug 140460

I can confirm this bug.

On http://forum.ubuntuusers.de/topic/159154/?p=1354627#1354627 I could find a possibility to stop that annoying error messages:

First save your old emails.
Then go to the evolution folder and delete all files called "inbox*".
Afterwards move your emails back to the newly created inbox .

Perhaps this solution can help to find the problem.