If you are using SMFSync[317] for your authentication, make sure you upgrade it to svn[319] before you enable it with the new authentication incorporated in Roster[1488]. If you don't you will have to manually edit the database to set it back to the Roster authentication to be able to upgrade.

It is highly recommended to uninstall roster 317 or lower before trying to install 319 or higher. There was a modification made to the roster database that needs to be undone by uninstalling.