Comment 3 for bug 744257

I have the same bug,

this is my terminal output

[Warn 15:46:36.932] Caught an exception - System.InvalidOperationException: Operation is not valid due to the current state of the object (in `Banshee.Dap.AppleDevice')
  at Banshee.Dap.AppleDevice.AppleDeviceSource.DeviceInitialize (IDevice device) [0x00000] in <filename unknown>:0
  at Banshee.Dap.DapService.FindDeviceSource (IDevice device) [0x00000] in <filename unknown>:0
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.NullReferenceException: Object reference not set to an instance of an object
  at Hyena.Widgets.RoundedFrame.DrawFrame (Cairo.Context cr, Rectangle clip) [0x00000] in <filename unknown>:0
  at Hyena.Widgets.RoundedFrame.OnExposeEvent (Gdk.EventExpose evnt) [0x00000] in <filename unknown>:0
  at Gtk.Widget.exposeevent_cb (IntPtr widget, IntPtr evnt) [0x00000] in <filename unknown>:0
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at Gtk.Widget.exposeevent_cb(IntPtr widget, IntPtr evnt)
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Banshee.Gui.GtkBaseClient.Run()
   at Banshee.Gui.GtkBaseClient.Startup()
   at Hyena.Gui.CleanRoomStartup.Startup(Hyena.Gui.StartupInvocationHandler startup)
   at Banshee.Gui.GtkBaseClient.Startup()
   at Banshee.Gui.GtkBaseClient.Startup(System.String[] args)
   at Nereid.Client.Main(System.String[] args)
   at System.AppDomain.ExecuteAssembly(System.Reflection.Assembly , System.String[] )
   at System.AppDomain.ExecuteAssemblyInternal(System.Reflection.Assembly a, System.String[] args)
   at System.AppDomain.ExecuteAssembly(System.String assemblyFile, System.Security.Policy.Evidence assemblySecurity, System.String[] args)
   at System.AppDomain.ExecuteAssembly(System.String assemblyFile)
   at Booter.Booter.BootClient(System.String clientName)
   at Booter.Booter.Main()