title: Why are new dependencies not picked up by Play 2.3.4 project in Eclipse?
body: <p>I updated my project to include some dependencies with the following lines in <code>build.sbt</code>:</p>
  
  <pre><code>libraryDependencies += "mysql" % "mysql-connector-java" % "5.1.33"
  libraryDependencies += "org.springframework" % "spring-jdbc" % "4.1.1.RELEASE"
  </code></pre>
  
  <p><code>classes_managed</code> was added to the classpath, but the directory does not exist and the libs are not present.</p>
  
  <p>I <code>clean</code>ed the project, removed all errors (including all references to the classes in the managed libs), <code>compile</code>, but still the directory and libs are missing.</p>
  
  <p>SBT does not seem to want to download the libs... not sure what I am doing wrong.</p>