Index: src/Plugins/Wti/Wti.Plugin/WtiGuiPlugin.cs
===================================================================
diff -u -r5fc71a385897af92ccb092f2f969b5709afab85a -rf4f20297137850e94b8ae0d8c582aec872d8c707
--- src/Plugins/Wti/Wti.Plugin/WtiGuiPlugin.cs	(.../WtiGuiPlugin.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
+++ src/Plugins/Wti/Wti.Plugin/WtiGuiPlugin.cs	(.../WtiGuiPlugin.cs)	(revision f4f20297137850e94b8ae0d8c582aec872d8c707)
@@ -73,7 +73,7 @@
         public override IEnumerable<ITreeNodePresenter> GetProjectTreeViewNodePresenters()
         {
             yield return new WtiProjectNodePresenter();
-            yield return new PipingDataNodeController().NodePresenter;
+            yield return new PipingDataNodePresenter();
             yield return new PipingOutputNodePresenter();
         }
     }