Important Notice - Forums is archived
To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.

Vaadin lets you build secure, UX-first PWAs entirely in Java.
Free ebook & tutorial.
Error while migrating 7.0 to 7.6 version
Getting below error , while running the application , what could be the issue?
Application was working fine with previous version.
Error :
. [/VAADIN/widgetsets/org.vaadin.highcharts.demo.DemoWidgetSet/org.vaadin.highcharts.demo.DemoWidgetSet.nocache.js] not found from filesystem or through class loader. Add widgetset and/or theme JAR to your classpath or add files to WebContent/VAADIN folder.
Do you have a widget set named DemoWidgetSet and have you recompiled it after updating to 7.6?
yes i recompiled , and also DemoWidgetSet is from the HighCharts AddOn.
Then it sounds like it is not being included in the WAR file as it should for whatever possible reason.