Comment 18 for bug 361560

Ran into the same problem. Following jonaz__ solution, with the exception that I killed the trackerd and tracker-indexer processes, deleted the contents of ~/.cache/tracker and ~/.local/share/tracker/data then logged out, and logged back in. Tracker indexer posted a notification that it was starting up.

Suspect that the tracker from 8.10 and the version of tracker from 9.04 are using some of the same files, but may be using them slightly differently. Alternatively an error under 8.10 may have been silently ignored that is generating the dialog under the 9.04 rc code. Possibly debugging is still enabled? I have not looked at the code though, so I don't know if that is the right area to point at.

One 'fix' would be to have the installer discard the contents of those files as history, under the assumption that the new release will generate a new/clean index. I would suggest that a validation on the data happen though as I had different results on another machine. My primary desktop had no problem with the update. It's my laptop which encountered the issue.