title: How to reference a parent project from a child
body: <p>I have a multi module project like this:</p>
  
  <ul>
  <li>gwt-app</li>
  <li>model</li>
  <li>webapp (depends on gwt-app and model)</li>
  </ul>
  
  <p>when I try to execute any goals in webapps, for example, launch jetty, build fails because maven can't find its dependencies (I didn't install modules into a local repo). Is there a possible way to reference the parent pom so that when I run any goals in a submodule, all its dependencies will be compiled (recompiled)?</p>