title: Eclipse error installing jboss tools
body: <p>I've been trying to install jboss tools on Eclipse Mars but it fails everytime showin the following error : </p>
  
  <blockquote>
    <p>Unable to read repository at <a href="http://download.jboss.org/jbosstools/mars/stable/updates/" rel="nofollow noreferrer">http://download.jboss.org/jbosstools/mars/stable/updates/</a>.
    <a href="http://download.jboss.org/jbosstools/mars/stable/updates/" rel="nofollow noreferrer">http://download.jboss.org/jbosstools/mars/stable/updates/</a> is not a valid repository location.</p>
  </blockquote>
  
  <p>I checked all the posts evoking this problem and all the solutions bellow did not work for me :</p>
  
  <ul>
  <li>Launching Eclipse from the command prompt and adding -vmargs -Djava.net.preferIPv4Stack=true</li>
  <li>Checking the connection in the internal web browser (The connection works just fine )</li>
  <li>Deleting the oomph subfolders</li>
  <li>Deleting the cache folder of org.eclipse.equinox.p2.core</li>
  </ul>