I have the same problem, I made a new install of Ubuntu Gnome 17.04 and discovered this. Not only Online Accounts but the Thunderbird doesn't work as well.
I just found a temporary solution for GOA: https://askubuntu.com/questions/909716/cant-add-google-account-on- ubuntu-gnome-17-04/910180#910180 But not for Thunderbird yet. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1687019 Title: Cannot add a Google account using Online Accounts in Ubuntu Gnome To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-online-accounts/+bug/1687019/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs