title: Vaadin: failed to load widgetset.nocache.js
body: <p>I'm using Vaadin 6.8.2 and Maven to develop an application.</p>
  
  <p>I've tried to add the Calendar add-on (1.3.0 - the version for Vaadin 6) to my project by following step by step the tutorial from this link: <a href="https://vaadin.com/book/vaadin6/-/page/addons.maven.html">https://vaadin.com/book/vaadin6/-/page/addons.maven.html</a></p>
  
  <p>However, I when I try to load my application in browser I get the following error: </p>
  
  <pre><code>Failed to load the widgetset: /myproject/VAADIN/widgetsets/my.company.ProjectWidgetSet/my.company.ProjectWidgetSet.nocache.js
  </code></pre>
  
  <p>If I look in the console, I see this: </p>
  
  <pre><code>INFO: Requested resource [VAADIN/widgetsets/my.company.ProjectWidgetSet/my.company.ProjectWidgetSet.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.
  </code></pre>
  
  <p>Did you run in similar problems?
  Any help, please? :)</p>