I'm running a fresh installation of xubuntu 16.10 and when clicking the "Add" button or the "Users" tab in shares-admin I get the following error:
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
[1] 31900 segmentation fault sudo shares-admin
I've tried launching with sudo and as a normal user and using the "Unlock" button, same issue.
Any ideas?