no dbs present

[JP Kelly]

when starting spamd i get an error in the log:
spamd[1290]: debug: bayes: no dbs present, cannot tie DB R/O: 
/tmp/spamd-1290-init/.spamassassin/bayes_toks

I have tried rebuilding the bayes db with sa-learn --sync but I still 
get the error

any ideas?