Right after the failed sync, I retried the sync again without deleting any database/notes, it failed almost immediately :
[DEBUG 22:15:51.489] SyncThread using SyncServiceAddin: Ubuntu One [DEBUG 22:15:51.490] Building web request for URL: https://one.ubuntu.com/notes//api/1.0/ [DEBUG 22:15:53.711] Building web request for URL: https://one.ubuntu.com/notes/api/1.0/user/ [DEBUG 22:15:58.027] 8 [DEBUG 22:15:58.028] Sync: GetNoteUpdatesSince rev -1 [DEBUG 22:15:58.028] Building web request for URL: https://one.ubuntu.com/notes/api/1.0/op/?include_notes=true [ERROR 22:16:18.131] Synchronization failed with the following exception: Latest revision on server has changed, please update restart your sync at Tomboy.WebSync.WebSyncServer.VerifyLatestSyncRevision (Nullable`1 latestRevision) [0x00000] in <filename unknown>:0 at Tomboy.WebSync.WebSyncServer.GetNoteUpdatesSince (Int32 revision) [0x00000] in <filename unknown>:0 at Tomboy.Sync.SyncManager.SynchronizationThread () [0x00000] in <filename unknown>:0 (Tomboy:1188): GLib-CRITICAL **: g_source_remove: assertion `tag > 0' failed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/793380 Title: Synchronization failed via Ubuntu One / Tomboy Web with exception: "Collection was modified; enumeration operation may not execute" -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs