title: No repository found at http://download.eclipse.org/technology/m2e/releases
body: <p>I'm trying to install the m2Eclipse plugin, but when I try to add the site under available software sites I am getting this error: </p>
  
  <blockquote>
    <p>"No repository found at
    <a href="http://download.eclipse.org/technology/m2e/releases" rel="noreferrer">http://download.eclipse.org/technology/m2e/releases</a>"</p>
  </blockquote>
  
  <p>With this stack trace:</p>
  
  <pre><code>org.eclipse.equinox.p2.core.ProvisionException: No repository found at http://download.eclipse.org/technology/m2e/releases.
  at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.fail(AbstractRepositoryManager.java:395)
  at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:653)
  at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
  at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
  at org.eclipse.equinox.p2.ui.LoadMetadataRepositoryJob.doLoad(LoadMetadataRepositoryJob.java:117)
  at org.eclipse.equinox.p2.ui.LoadMetadataRepositoryJob.runModal(LoadMetadataRepositoryJob.java:102)
  at org.eclipse.equinox.internal.p2.ui.sdk.PreloadingRepositoryHandler$2.runModal(PreloadingRepositoryHandler.java:83)
  at org.eclipse.equinox.p2.operations.ProvisioningJob.run(ProvisioningJob.java:177)
  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
  </code></pre>
  
  <p>This also occurs for any other repositories I try to add.</p>
  
  <p>Based on <a href="https://stackoverflow.com/questions/7625943/unable-to-read-repository-at-http-download-eclipse-org-releases-indigo">this stack overflow question</a> some fixes are:</p>
  
  <ol>
  <li>Fix proxy settings and verify you are able to connect to the
  internet with eclipses browser  </li>
  <li>Remove and add site again (or
  Reload) </li>
  <li>Start eclipse with these properties: -vmargs
  -Djava.net.preferIPv4Stack=true</li>
  <li>Deleting the cache directory "\eclipse\p2\org.eclipse.equinox.p2.repository\cache"</li>
  </ol>
  
  <p>I was able to do (1) Fix proxy settings and connect to the repository in the browser.  It is even able to connect to the repository through the browser:</p>
  
  <p><a href="https://i.stack.imgur.com/136h2.png" rel="noreferrer"><img src="https://i.stack.imgur.com/136h2.png" alt="successful internal browser"></a></p>
  
  <p>But none of these solutions allowed me to install software when going through the Help -> Install new Software -> process.  Does anyone have any more information or troubleshooting advice for this issue?</p>