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I've added the Invient JAR to my apps' "/WEB-INF/lib" folder. I then compiled the Invient widget-set and added "<inherits name="com.invient.vaadin.charts.widgetset.InvientChartsWidgetset" />" to its corresponding gwt.xml file.
Running the demo chart yields no UI display at all. Is there a detailed process for setting up such an addon?