Which version of Vizard are you using? You posted this question in the Vizard 2.5 forum, but that warning message should only appear in Vizard 3.0. If you are running Vizard 3.0, then you need to use the
viz.link command. There are plenty of examples in the documentation for using this command. In this case you would do:
Code:
viz.link(tracker,viz.MainView)