Comment 1 for bug 86971

Update:

Just upgraded to feisty. The errors seems to be gone with this version.

But a new problem was, that between 0.10.2 (edgy) and 0.10.3 (feisty), the used sqlite version switched from 2.x to 3. So I had to upgrade my trac.db as described in TracUpgrade. It was a bit special that the change happened in a minor version change and actually, sqlite3 itself was not installed on my system, only the libraries.