title: I am getting this error while starting eclipse .I have reinstalled it many times,still getting this error .?
body: <pre><code>!SESSION Wed Mar 28 19:04:50 IST 2018 ------------------------------------------
  !ENTRY org.eclipse.equinox.launcher 4 0 2018-03-28 19:04:50.629
  !MESSAGE Exception launching the Eclipse Platform:
  !STACK
  java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter
      at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
      at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:626)
      at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
      at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
      at org.eclipse.equinox.launcher.Main.main(Main.java:1414)
  </code></pre>
  
  <p>I am getting this error while starting eclipse .I have reinstalled it many times,still getting this error . ?</p>