[Shotwell] Missing publish destinations

[Michele]

Hello Shotwell,
I'm currently using Shotwell 0.12.3 on Ubuntu 12.04 with the latest updates.
I would like to export some photos to Flickr and Picasa Web, but those 
two destinations are missing, although the plugins are activated (the 
only destination active is Piwigo).
I found out that Shotwell is now using the Ubuntu Online Accounts. 
However in Ubuntu Online Accounts the only account associated with 
Shotwell is Facebook. There is no trace of Google or Yahoo accounts.
Could you please help me solve this?
Thank you very much
regards
Michele