title: JPA container addressbook missing artifact
body: <p>So I tried to load a zipped version of the JPA addressbook using Maven as is instructed in the tutorial, but I have this error, where it says there's a missing artifact. </p>
  
  <pre><code>    &lt;dependency&gt;
          &lt;groupId&gt;com.vaadin.addon&lt;/groupId&gt;
          &lt;artifactId&gt;jpacontainer&lt;/artifactId&gt;
          &lt;version&gt;${project.version}&lt;/version&gt;
      &lt;/dependency&gt;
  </code></pre>
  
  <p>It says this artifact is missing japcontainer.jar:2.1.1, and when I change version to these numbers, I still get the same error. I'm a little lost, and don't really understand what I'm doing. Any help would be appreciated.</p>
  
  <p>Thanks</p>
  
  <p>Here's the tutorial:
  <a href="https://vaadin.com/download/jpacontainer-tutorial/" rel="nofollow">https://vaadin.com/download/jpacontainer-tutorial/</a></p>