I'm new to Avalonia and am trying to use livecharts. Been using "https://livecharts.dev/docs/Avalonia/2.0.0-rc2/Overview.Installation" but when I use " <lvc:CartesianChart Series="{Binding Series}"> </lvc:CartesianChart> " it says "Cannot parse a compiled binding without an explicit x:DataType directive to give a starting data type for bindings". If there is an easier way to make graphs in avalonia lmk.