vaadin pie chart not rendered in browser

Hi,

I am trying to incorporate vaadin chart in my web application which is based on spring-boot and vaadin UI. I have saved the trial license in the path C:\Users\myuser\vaadin.charts.developer.license file. I have inlcuded the vaadin-maven-plugin in my pom.xml with following goals 

                       <goals>
                            <goal>resources</goal>
                              <goal>update-theme</goal>
                            <goal>update-widgetset</goal>
                              <goal>compile-theme</goal>
                            <goal>compile</goal>
                        </goals>
But when I run the spring-boot app, I get a message and the chart is not rendered. I have attached my pom.xml and the error message. Please help. Thanks.

Tatu Lund: Did you compile the widgetset? If you tried to compile it, did you get errors indicating that something is wrong with setup?

 

I did get warning when doing a mvn install, but no errors. Attached is the maven console log. 

My DashboardWidgetSet.gwt.xml looks like below: is there something needs to be added/deleted ?

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 1.7.0//EN" "http://google-web-toolkit.googlecode.com/svn/tags/1.7.0/distro-source/core/src/gwt-module.dtd">
<module>
    <inherits name="com.vaadin.DefaultWidgetSet" />
    <set-configuration-property name="devModeRedirectEnabled"
        value="true" />
    <inherits name="com.vaadin.addon.charts.Widgetset" />
</module>

Thanks.