title: An internal error occurred during: "C/C++ Indexer"
body: <p>For some reasons eclipse starts showing me this message recently and after that auto-completing and intellisense stop working</p>
  
  <pre> An internal error occurred during: "C/C++ Indexer".
  tried to access method java.lang.Object.clone()Ljava/lang/Object; from class org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.SemanticUtil </pre>
  
  <p>I searched a lot but with no value!</p>