Giver does not start (System.DllNotFoundException: libX11.so)

[Salih EMIN]

Binary package hint: giver

Using Natty with, Giver doesn't start. In terminal I got this:

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salih@ubuntu:~$ giver
[Debug]: PhotoService static constructor called
[Debug]: New GiverService was created
[Debug]: We have the port : 41892
[Debug]: About to create the Avahi client
[Debug]: Adding Avahi Service _giver._tcp
[Debug]: Avahi Service _giver._tcp is added
[Debug]: GiverService:OnEntryGroupStateChanged was called state: Registering

(Giver:5840): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed

(Giver:5840): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed
[Debug]: About to call ServiceAdded
[Debug]: ServiceAdded was just called
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.DllNotFoundException: libX11.so
  at (wrapper managed-to-native) Egg.TrayIcon:XInternAtom (intptr,string,bool)
  at Egg.TrayIcon.OnRealized () [0x00000] in <filename unknown>:0
  at Gtk.Widget.realized_cb (IntPtr widget) [0x00000] in <filename unknown>:0
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at Gtk.Widget.realized_cb(IntPtr widget)
   at Gtk.Widget.gtk_widget_show_all(IntPtr )
   at Gtk.Widget.ShowAll()
   at Giver.Application.SetupTrayIcon()
   at Giver.Application.InitializeIdle()
   at GLib.Idle+IdleProxy.Handler()
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Gnome.Program.Run()
   at Giver.Application.StartMainLoop()
   at Giver.Application.Main(System.String[] args)
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ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: giver 0.1.8-6
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
CheckboxSubmission: 9f48ec1472aae69d276582b3f690aeac
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Sun May 8 21:58:41 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110411.2)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: giver
UpgradeStatus: No upgrade log present (probably fresh install)