Tomboy crashes when Register Computer with Ubuntu One synchronization

[Hendy Irawan]

Binary package hint: tomboy

Steps to reproduce (on my configuration, at least) :
1. Make sure Tomboy is configured to sync to Ubuntu One
2. Delete ~/.gconf/apps/tomboy
3. Go to Tomboy Preferences
4. On "Synchronization" tab, "Local Folder" is selected. Choose "Ubuntu One", it says "Already registered".
5. Click "Save", it will ask to synchronize now, click "No".
6. Click "Clear", then click "Register computer".

Tomboy crashes with the following :

$ tomboy -debug
[INFO 18:20:59.864] Initializing Mono.Addins

** (Tomboy:24801): DEBUG: SyncDaemon already running, initializing SyncdaemonDaemon object
Marshaling clicked signal
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object
  at Tomboy.WebSync.U1SyncPreferencesWidget.OnAuthButtonClicked (System.Object sender, System.EventArgs args) [0x00000] in <filename unknown>:0
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  --- End of inner exception stack trace ---
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
  at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
  at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
  at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0
  at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0
  at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0
  at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data) [0x00000] in <filename unknown>:0
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GLib.SignalClosure.MarshalCallback(IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Tomboy.GnomeApplication.StartMainLoop()
   at Tomboy.Application.StartMainLoop()
   at Tomboy.Tomboy.StartTrayIcon()
   at Tomboy.Tomboy.Main(System.String[] args)

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: tomboy 1.6.0-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-9.43+kamal~mjgbacklight4-generic 2.6.38.4
Uname: Linux 2.6.38-9-generic x86_64
Architecture: amd64
Date: Wed May 25 18:20:30 2011
InstallationMedia: Pinguy OS 11.04 64-Bit - Release amd64
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 LC_MESSAGES=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: tomboy
UpgradeStatus: No upgrade log present (probably fresh install)

[Jean-Pierre FORCIOLI (jeanpierre-forcioli)]

I've the exact same problem.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alemann Massho (armistice-con-deactivatedaccount)]

Ubuntu One notes sync is going away, see https://bugs.launchpad.net/ubuntu/+source/tomboy/+bug/1115460