[Pharo-users] PUnQLite NB error

Hi list, I'm trying to get Masashi's PUnQLite package to work in Pharo 4 under Ubuntu, and here's what happens when I try to run the example code: |db| db := PqDatabase open: 'comments.db'. db disableAutoCommit. db transact: [ Object subclasses do: [:cls | | key | key := cls asString. db at: key put: cls comment ] ]. db close. Any idea what can be happening here? ​ Thanks! :) Bernat. -- Bernat Romagosa.