vaadin charts failed to load

I want to use charts in my project without adding dependency to xml file.
I have added Jar files of vaadin chart addon to my lib of project.
But it is giving still the same problem of vaadin charts failed to load and noche.js.. ?
Why this error is coming any body can help?
Any Body can help????
 

Hi,

You should be sure that the widgetset is updated and compiled.

Take a look at this instructions:
https://vaadin.com/book/-/page/addons.downloading.html

Hope this helps,

Guillermo