[Evolution] 'Data source 'emailaddress' is not writable' message

["Chr. M." <chr mntn gmail com>]

Hello, 

I just upgraded to evolution 3.6. Everything seems to work. It recognized my online gmail account (added through online accounts) automatically. The only thing is that when I try to edit the preferences for this account in Evolution and try to save, it says: 'Data source 'emailaddress' is not writable'. I do not know how to change the preferences. Any idea?

Thanks.

Regards, Chris