title: Warning: Documents NO-HEAD in Eclipse
body: <p>When I create a new java project in eclipse, there is a warning saying "documents NO-HEAD" after the project name. I don't know how to solve this. Will this cause any errors in my code?</p>
  
  <p>I tried to uninstall eclipse and reinstall it. However, the warning is still there.</p>
  
  <p>The following image shows the warning.</p>
  
  <p><img src="https://i.stack.imgur.com/vgv2b.png"></p>