Following this tracker for a while, I know have found a solution that works for me. I found the problem using the libgdata debug described above, but with Evolution 3 and libgdata 0.8.1. Thus, Evolution it put a more conclusive error message which led me to this:
https://bugzilla.gnome.org/show_bug.cgi?id=648058 Maybe that's also your problem. As described there, you could either wait for libgdata 0.8.2 being released. As a workaround, you could instead delete or label all user-defined fields in your Google contacts. I did not know which of my contacts have such fields, and using the Google web interface to find it out is obviously very inconvenient. Instead, I started libgdata in debug mode (see above), wrote stdout to a logfile and searched this file for the term "user". With this method, I quickly found all the contacts containing user-defined fields and deleted those fields (if unlabeled). After that, syncing works well again (also with Evo 2.32 and libgdata 0.8.0 as installed with Natty). ** Bug watch added: GNOME Bug Tracker #648058 https://bugzilla.gnome.org/show_bug.cgi?id=648058 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/762187 Title: recurring 10 min invalid query dialog box from google contact sync -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs