Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.NullReferenceException: A null value was found where an object instance was required.
  at Banshee.MediaEngine.PlayerEngineService.OpenPlay (Banshee.Collection.TrackInfo track) [0x00000] in /home/brandon/work/banshee/src/Core/Banshee.Services/Banshee.MediaEngine/PlayerEngineService.cs:183 
  at Banshee.MediaEngine.PlaybackControllerService.QueuePlayTrack () [0x00000] in /home/brandon/work/banshee/src/Core/Banshee.Services/Banshee.MediaEngine/PlaybackControllerService.cs:149 
  at Banshee.MediaEngine.PlaybackControllerService.Next () [0x00069] in /home/brandon/work/banshee/src/Core/Banshee.Services/Banshee.MediaEngine/PlaybackControllerService.cs:122 
  at Banshee.Gui.PlaybackActions.OnNextAction (System.Object o, System.EventArgs args) [0x00000] in /home/brandon/work/banshee/src/Core/Banshee.ThickClient/Banshee.Gui/PlaybackActions.cs:145 
  at (wrapper delegate-invoke) System.MulticastDelegate:invoke_void_object_EventArgs (object,System.EventArgs)
  at GLib.Signal.voidObjectCallback (IntPtr handle, IntPtr gch) [0x00000] 

   at GLib.ExceptionManager.RaiseUnhandledException ()
   at GLib.Signal.voidObjectCallback ()
   at GLib.Signal.voidObjectCallback ()
   at Gtk.Application.gtk_main ()
   at Gtk.Application.gtk_main ()
   at Gtk.Application.Run ()
   at Gnome.Program.Run ()
   at Nereid.Client.Run () in /home/brandon/work/banshee/src/Core/Nereid/Nereid/Client.cs:line 50
   at Banshee.Gui.GtkBaseClient.Startup () in /home/brandon/work/banshee/src/Core/Banshee.ThickClient/Banshee.Gui/GtkBaseClient.cs:line 53
   at System.MulticastDelegate.invoke_void ()
   at Hyena.Gui.CleanRoomStartup.Startup () in /home/brandon/work/banshee/src/Core/Hyena.Gui/Hyena.Gui/CleanRoomStartup.cs:line 54
   at Banshee.Gui.GtkBaseClient.Entry () in /home/brandon/work/banshee/src/Core/Banshee.ThickClient/Banshee.Gui/GtkBaseClient.cs:line 48
   at Nereid.Client.Main () in /home/brandon/work/banshee/src/Core/Nereid/Nereid/Client.cs:line 35
~/work/banshee/src/Core
make[1]: Leaving directory `/home/brandon/work/banshee/src/Core'
~/work/banshee