TIWChartJS

Does anyone use TIWChart component?
With Delphi12 and IW 16.0.2 installed one chart can be created.
But the following is not working:


VAR SecondSeries: TChartSeries;
...
SecondSeries := IWChartJS1.AddSeries(ctBar, 'test);
&t&t Errormessage:
E2010 Incompatible types: 'VCLTee.TeEngine.TChartSeries' and 'IWChartJS.TChartSeries'


Does anyone have an idea how to solve the problem?

Thank you very much.