title: udash tutorial fails to run
body: <p>I follow the tutorial on <a href="https://guide.udash.io/" rel="nofollow noreferrer">https://guide.udash.io/</a>
  but it fails to run:</p>
  
  <pre><code>$ sbt new UdashFramework/udash.g8
  name [My Udash Application]: 
  package [io.company.app]: 
  scala_version [2.12.8]: 
  udash_version [0.8.0-RC8]: 
  sbt_version [1.2.8]: 
  
  $ cd my-udash-application
  
  $ sbt compile compileStatics run
  [error] (run-main-1) java.lang.ClassNotFoundException: io.company.app.backend.Launcher
  </code></pre>