DialogDebuggerVisualizer: COMException: object is in zombie state

Question

For the first time in a debugging session that I am trying to show the visualizer, it throws this exception (appears below), I click "Continue" in the exception message dialog box and again display the visualizer (by clicking on the "Magnifying glass icon next to the variable). This a simple visualizer that I have:

[assembly: DebuggerVisualizer(
    typeof(TestVisualizer),
    Target = typeof (string),
    Description = "Test Visualizer")]

namespace VuTree {
    public class TestVisualizer : DialogDebuggerVisualizer {
        protected override void Show(IDialogVisualizerService svc, IVisualizerObjectProvider provider) {
            var text = provider.GetObject() as string ?? "no object found...";
            using (var form = new Form())
            {
                form.Text = text;
                form.Size = new Size(400, 400);
                svc.ShowDialog(form);
            }
        }
    }
}

These (part) exceptions:

************** Exception Text **************
System.Runtime.InteropServices.COMException (0x8013134F): Object is in a zombie state. (Exception from HRESULT: 0x8013134F)

Server stack trace: 
   at Microsoft.VisualStudio.DebuggerVisualizers.DebugViewerShim.IPropertyProxyEESide.InitSourceDataProvider(IEEDataStorage& data)
   at Microsoft.VisualStudio.DebuggerVisualizers.DebugViewerShim.ManagedShim.SafeProxyWrapper.InitSourceDataProvider()
   at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
   at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)

Exception rethrown at [0]: 
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at Microsoft.VisualStudio.DebuggerVisualizers.DebugViewerShim.ManagedShim.SafeProxyWrapper.InitSourceDataProvider()
   at Microsoft.VisualStudio.DebuggerVisualizers.DebugViewerShim.ManagedShim.DelegatedHost.CreateViewer(IntPtr hwnd, HostServicesHelper hsh, SafeProxyWrapper proxy)

Why is this happening? how to solve it?

Answer 1

In general, the state of zombies - , , ( ), - , , , , , -, , , . , , -, , win apps... , , . , . , -, IIS, w3wp.exe( ).