Jan 16 20:11:34 ubuntu ubiquity: WARNING:root:can't add account-plugin-aim (E:Unable to correct problems, you have held broken packages.)
Jan 16 20:11:34 ubuntu ubiquity: WARNING:root:can't add account-plugin-facebook (E:Unable to correct problems, you have held broken packages.)
....
In syslog we can see the following:
Jan 16 20:11:34 ubuntu ubiquity: WARNING:root:can't add account-plugin-aim (E:Unable to correct problems, you have held broken packages.) plugin- facebook (E:Unable to correct problems, you have held broken packages.)
Jan 16 20:11:34 ubuntu ubiquity: WARNING:root:can't add account-
....
This appears for hundreds of packages.