gnome-contacts fails to build: memory-icon.vala:29.1-29.63: error: `Contacts.MemoryIcon' does not implement interface method `GLib.Icon.serialize

memory-icon.vala:29.1-29.63: error: `Contacts.MemoryIcon' does not implement interface method `GLib.Icon.serialize'
internal class Contacts.MemoryIcon : Object, Icon, LoadableIcon {
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
contacts-contact-editor.vala:731.38-731.65: warning: Gee.Map.contains is deprecated. Use Map.has_key
contacts-app.vala:78.30-78.33: warning: Argument 1: Cannot pass null to non-null parameter type
      contact_name.set_text (null);
                             ^^^^
contacts-app.vala:195.5-197.39: warning: unhandled error `GLib.Error'
contacts-linking.vala:746.8-746.64: warning: unhandled error `GLib.Error'
 yield App.app.contacts_store.aggregator.unlink_individual (ind);
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
contacts-linking.vala:750.8-750.59: warning: unhandled error `Folks.IndividualAggregatorError'
 yield App.app.contacts_store.aggregator.link_personas (ps);
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
contacts-linking.vala:765.11-765.72: warning: unhandled error `Folks.IndividualAggregatorError'
    yield App.app.contacts_store.aggregator.link_personas (all_personas);
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
contacts-app.vala:561.28-561.31: warning: Argument 1: Cannot pass null to non-null parameter type
    contact_name.set_text (null);
                           ^^^^
contacts-app.vala:394.32-394.35: warning: Argument 1: Cannot pass null to non-null parameter type
        contact_name.set_text (null);
                               ^^^^
Compilation failed: 1 error(s), 15 warning(s)

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: gnome-contacts 3.8.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.10.0-6.17-generic 3.10.3
Uname: Linux 3.10.0-6-generic x86_64
ApportVersion: 2.11-0ubuntu1
Architecture: amd64
Date: Thu Aug 1 11:31:07 2013
InstallationDate: Installed on 2013-06-14 (48 days ago)
InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Alpha amd64 (20130613)
MarkForUpload: True
SourcePackage: gnome-contacts
UpgradeStatus: No upgrade log present (probably fresh install)