: Perfect. I reindexed the whole index and everything worked fine. The : exception was just a little bit confusing.
Dirk: I'm glad you were able to work arround this, but it's definitely suprising to me thta you got this exception, because it doesn't match my understanding of what is supported in re-using an existing index when upgrading. I've started a thread on the dev list to sanity check my understanding, and ensure that we either fix this automaticly or provide better docs on how to upgrade the index format. -Hoss
