ErrorListProvider in VS2010 throws InvalidOperationException about IVsTaskList

Question

I'm trying to hook into the ErrorListProvider in VS2010 to provide some more feedback from my VS2010 extension addin. The code is as follows:

        try
        {
            ErrorListProvider errorProvider = new ErrorListProvider(ServiceProvider);
            ErrorTask error = new ErrorTask();
            error.Category = TaskCategory.BuildCompile;
            error.Text = "ERROR!";
            errorProvider.Tasks.Add(error);
        }
        catch (InvalidOperationException)
        { }

However the following exception is thrown:

System.InvalidOperationException was caught Message=The service 'Microsoft.VisualStudio.Shell.Interop.IVsTaskList' must be installed for this feature to work. Ensure that this service is available. Source=Microsoft.VisualStudio.Shell.10.0 StackTrace: at Microsoft.VisualStudio.Shell.TaskProvider.get_VsTaskList() at Microsoft.VisualStudio.Shell.TaskProvider.Refresh() at Microsoft.VisualStudio.Shell.TaskProvider.TaskCollection.Add(Task task)

Does anyone have any ideas why?