Results of code analyses in Visual Studio

I try run code analyses in visual studio, an I get this warning:

Warning 22 CA2000 : Microsoft.Reliability : In method 'MessengerViewModel.GoToRoom()', call System.IDisposable.Dispose on object 'new Task(CS$<>9__CachedAnonymousMethodDelegate6)' before all references to it are out of scope. C:\Users\Jan\Documents\Visual Studio 2010\Projects\C#\Pokec_Messenger_Project\Pokec_Messenger\Spirit_Caliburn_Micro_v1.0\ViewModels\MessengerViewModel_MainMenu.cs 45 Spirit_Caliburn_Micro_v1.0

on this method:

    public void GoToRoom()
    {
        try
        {
            new System.Threading.Tasks.Task(() =>
            {
                Service.GoToRoom(Account, SelectedRoom);
                Service.LoadRoomMsg(Account, SelectedRoom);
            }
            ).Start();
        }
        catch (Exception exception)
        {
            MsgBox.ShowException(exception);
        }

    }

I don’t understand on which object I should call Dispose method.

Edited:

I try this:

    public void GoToRoom()
    {
        Task task = null;
        try
        {
            task = new Task(() =>
            {
                Service.GoToRoom(Account, SelectedRoom);
                Service.LoadRoomMsg(Account, SelectedRoom);
            });
            task.Start();
        }
        catch (Exception exception)
        {
            MsgBox.ShowException(exception);
        }
        finally
        {
            if (task != null)
                if (task.Status == TaskStatus.RanToCompletion ||
                    task.Status == TaskStatus.Faulted ||
                    task.Status == TaskStatus.Canceled)
                    task.Dispose();
        }
    }

Run code analyses and get:

Warning 21  CA2000 : Microsoft.Reliability : In method 'MessengerViewModel.GoToR开发者_开发问答oom()', call System.IDisposable.Dispose on object 'task' before all references to it are out of scope.  C:\Users\Jan\Documents\Visual Studio 2010\Projects\C#\Pokec_Messenger_Project\Pokec_Messenger\Spirit_Caliburn_Micro_v1.0\ViewModels\MessengerViewModel_MainMenu.cs  59  Spirit_Caliburn_Micro_v1.0

It is wanting you to call dispose on Task. See this explanation as to why.

More information can be found on this topic here